diff --git a/internal/core/src/index/BitmapIndex.cpp b/internal/core/src/index/BitmapIndex.cpp
index 0dfc2506cbc28..f7b590a32ab77 100644
--- a/internal/core/src/index/BitmapIndex.cpp
+++ b/internal/core/src/index/BitmapIndex.cpp
@@ -15,10 +15,14 @@
 // limitations under the License.
 
 #include <algorithm>
+#include <boost/algorithm/string.hpp>
+#include <sys/errno.h>
+#include <unistd.h>
 #include <yaml-cpp/yaml.h>
 
 #include "index/BitmapIndex.h"
 
+#include "common/File.h"
 #include "common/Slice.h"
 #include "common/Common.h"
 #include "index/Meta.h"
@@ -33,8 +37,10 @@ namespace index {
 template <typename T>
 BitmapIndex<T>::BitmapIndex(
     const storage::FileManagerContext& file_manager_context)
-    : is_built_(false),
-      schema_(file_manager_context.fieldDataMeta.field_schema) {
+    : ScalarIndex<T>(BITMAP_INDEX_TYPE),
+      is_built_(false),
+      schema_(file_manager_context.fieldDataMeta.field_schema),
+      is_mmap_(false) {
     if (file_manager_context.Valid()) {
         file_manager_ =
             std::make_shared<storage::MemFileManagerImpl>(file_manager_context);
@@ -42,6 +48,19 @@ BitmapIndex<T>::BitmapIndex(
     }
 }
 
+template <typename T>
+void
+BitmapIndex<T>::UnmapIndexData() {
+    if (mmap_data_ != nullptr && mmap_data_ != MAP_FAILED) {
+        if (munmap(mmap_data_, mmap_size_) != 0) {
+            AssertInfo(
+                true, "failed to unmap bitmap index, err={}", strerror(errno));
+        }
+        mmap_data_ = nullptr;
+        mmap_size_ = 0;
+    }
+}
+
 template <typename T>
 void
 BitmapIndex<T>::Build(const Config& config) {
@@ -373,6 +392,82 @@ BitmapIndex<std::string>::DeserializeIndexData(const uint8_t* data_ptr,
     }
 }
 
+template <typename T>
+void
+BitmapIndex<T>::DeserializeIndexDataForMmap(const char* data_ptr,
+                                            size_t index_length) {
+    for (size_t i = 0; i < index_length; ++i) {
+        T key;
+        memcpy(&key, data_ptr, sizeof(T));
+        data_ptr += sizeof(T);
+
+        roaring::Roaring value;
+        value = roaring::Roaring::read(reinterpret_cast<const char*>(data_ptr));
+        auto size = value.getSizeInBytes();
+
+        bitmap_info_map_[key] = {data_ptr - mmap_data_, size};
+        data_ptr += size;
+    }
+}
+
+template <>
+void
+BitmapIndex<std::string>::DeserializeIndexDataForMmap(const char* data_ptr,
+                                                      size_t index_length) {
+    for (size_t i = 0; i < index_length; ++i) {
+        size_t key_size;
+        memcpy(&key_size, data_ptr, sizeof(size_t));
+        data_ptr += sizeof(size_t);
+
+        std::string key(reinterpret_cast<const char*>(data_ptr), key_size);
+        data_ptr += key_size;
+
+        roaring::Roaring value;
+        value = roaring::Roaring::read(reinterpret_cast<const char*>(data_ptr));
+        auto size = value.getSizeInBytes();
+
+        bitmap_info_map_[key] = {static_cast<size_t>(data_ptr - mmap_data_),
+                                 size};
+        data_ptr += size;
+    }
+}
+
+template <typename T>
+void
+BitmapIndex<T>::MMapIndexData(const std::string& file_name,
+                              const uint8_t* data_ptr,
+                              size_t data_size,
+                              size_t index_length) {
+    std::filesystem::create_directories(
+        std::filesystem::path(file_name).parent_path());
+
+    auto file = File::Open(file_name, O_RDWR | O_CREAT | O_TRUNC);
+    auto written = file.Write(data_ptr, data_size);
+    if (written != data_size) {
+        file.Close();
+        remove(file_name.c_str());
+        PanicInfo(ErrorCode::UnistdError,
+                  fmt::format("write index to fd error: {}", strerror(errno)));
+    }
+
+    file.Seek(0, SEEK_SET);
+    mmap_data_ = static_cast<char*>(
+        mmap(NULL, data_size, PROT_READ, MAP_PRIVATE, file.Descriptor(), 0));
+    if (mmap_data_ == MAP_FAILED) {
+        file.Close();
+        remove(file_name.c_str());
+        PanicInfo(
+            ErrorCode::UnexpectedError, "failed to mmap: {}", strerror(errno));
+    }
+
+    mmap_size_ = data_size;
+    unlink(file_name.c_str());
+
+    char* ptr = mmap_data_;
+    DeserializeIndexDataForMmap(ptr, index_length);
+    is_mmap_ = true;
+}
+
 template <typename T>
 void
 BitmapIndex<T>::LoadWithoutAssemble(const BinarySet& binary_set,
@@ -385,11 +480,33 @@ BitmapIndex<T>::LoadWithoutAssemble(const BinarySet& binary_set,
     valid_bitset = TargetBitmap(total_num_rows_, false);
 
     auto index_data_buffer = binary_set.GetByName(BITMAP_INDEX_DATA);
-    DeserializeIndexData(index_data_buffer->data.get(), index_length);
 
-    LOG_INFO("load bitmap index with cardinality = {}, num_rows = {}",
-             Cardinality(),
-             total_num_rows_);
+    ChooseIndexLoadMode(index_length);
+
+    // only using mmap when build mode is raw roaring bitmap
+    if (config.contains(kMmapFilepath) &&
+        build_mode_ == BitmapIndexBuildMode::ROARING) {
+        auto mmap_filepath =
+            GetValueFromConfig<std::string>(config, kMmapFilepath);
+        AssertInfo(mmap_filepath.has_value(),
+                   "mmap filepath is empty when load index");
+        MMapIndexData(mmap_filepath.value(),
+                      index_data_buffer->data.get(),
+                      index_data_buffer->size,
+                      index_length);
+    } else {
+        DeserializeIndexData(index_data_buffer->data.get(), index_length);
+    }
+
+    auto file_index_meta = file_manager_->GetIndexMeta();
+    LOG_INFO(
+        "load bitmap index with cardinality = {}, num_rows = {} for segment_id "
+        "= {}, field_id = {}, mmap = {}",
+        Cardinality(),
+        total_num_rows_,
+        file_index_meta.segment_id,
+        file_index_meta.field_id,
+        is_mmap_);
 
     is_built_ = true;
 }
@@ -397,6 +514,7 @@ BitmapIndex<T>::LoadWithoutAssemble(const BinarySet& binary_set,
 template <typename T>
 void
 BitmapIndex<T>::Load(milvus::tracer::TraceContext ctx, const Config& config) {
+    LOG_DEBUG("load bitmap index with config {}", config.dump());
     auto index_files =
         GetValueFromConfig<std::vector<std::string>>(config, "index_files");
     AssertInfo(index_files.has_value(),
@@ -421,6 +539,18 @@ BitmapIndex<T>::In(const size_t n, const T* values) {
     AssertInfo(is_built_, "index has not been built");
     TargetBitmap res(total_num_rows_, false);
 
+    if (is_mmap_) {
+        for (size_t i = 0; i < n; ++i) {
+            auto val = values[i];
+            auto it = bitmap_info_map_.find(val);
+            if (it != bitmap_info_map_.end()) {
+                for (const auto& v : AccessBitmap(it->second)) {
+                    res.set(v);
+                }
+            }
+        }
+        return res;
+    }
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         for (size_t i = 0; i < n; ++i) {
             auto val = values[i];
@@ -447,6 +577,19 @@ const TargetBitmap
 BitmapIndex<T>::NotIn(const size_t n, const T* values) {
     AssertInfo(is_built_, "index has not been built");
 
+    if (is_mmap_) {
+        TargetBitmap res(total_num_rows_, true);
+        for (int i = 0; i < n; ++i) {
+            auto val = values[i];
+            auto it = bitmap_info_map_.find(val);
+            if (it != bitmap_info_map_.end()) {
+                for (const auto& v : AccessBitmap(it->second)) {
+                    res.reset(v);
+                }
+            }
+        }
+        return res;
+    }
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         TargetBitmap res(total_num_rows_, true);
         for (int i = 0; i < n; ++i) {
@@ -558,12 +701,76 @@ BitmapIndex<T>::RangeForBitset(const T value, const OpType op) {
 template <typename T>
 const TargetBitmap
 BitmapIndex<T>::Range(const T value, OpType op) {
+    if (is_mmap_) {
+        return std::move(RangeForMmap(value, op));
+    }
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         return std::move(RangeForRoaring(value, op));
     } else {
         return std::move(RangeForBitset(value, op));
     }
 }
+template <typename T>
+TargetBitmap
+BitmapIndex<T>::RangeForMmap(const T value, const OpType op) {
+    AssertInfo(is_built_, "index has not been built");
+    TargetBitmap res(total_num_rows_, false);
+    if (ShouldSkip(value, value, op)) {
+        return res;
+    }
+    auto lb = bitmap_info_map_.begin();
+    auto ub = bitmap_info_map_.end();
+
+    switch (op) {
+        case OpType::LessThan: {
+            ub = std::lower_bound(bitmap_info_map_.begin(),
+                                  bitmap_info_map_.end(),
+                                  std::make_pair(value, TargetBitmap()),
+                                  [](const auto& lhs, const auto& rhs) {
+                                      return lhs.first < rhs.first;
+                                  });
+            break;
+        }
+        case OpType::LessEqual: {
+            ub = std::upper_bound(bitmap_info_map_.begin(),
+                                  bitmap_info_map_.end(),
+                                  std::make_pair(value, TargetBitmap()),
+                                  [](const auto& lhs, const auto& rhs) {
+                                      return lhs.first < rhs.first;
+                                  });
+            break;
+        }
+        case OpType::GreaterThan: {
+            lb = std::upper_bound(bitmap_info_map_.begin(),
+                                  bitmap_info_map_.end(),
+                                  std::make_pair(value, TargetBitmap()),
+                                  [](const auto& lhs, const auto& rhs) {
+                                      return lhs.first < rhs.first;
+                                  });
+            break;
+        }
+        case OpType::GreaterEqual: {
+            lb = std::lower_bound(bitmap_info_map_.begin(),
+                                  bitmap_info_map_.end(),
+                                  std::make_pair(value, TargetBitmap()),
+                                  [](const auto& lhs, const auto& rhs) {
+                                      return lhs.first < rhs.first;
+                                  });
+            break;
+        }
+        default: {
+            PanicInfo(OpTypeInvalid,
+                      fmt::format("Invalid OperatorType: {}", op));
+        }
+    }
+
+    for (; lb != ub; lb++) {
+        for (const auto& v : AccessBitmap(lb->second)) {
+            res.set(v);
+        }
+    }
+    return res;
+}
 
 template <typename T>
 TargetBitmap
@@ -690,6 +897,10 @@ BitmapIndex<T>::Range(const T lower_value,
                       bool lb_inclusive,
                       const T upper_value,
                       bool ub_inclusive) {
+    if (is_mmap_) {
+        return RangeForMmap(
+            lower_value, lb_inclusive, upper_value, ub_inclusive);
+    }
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         return RangeForRoaring(
             lower_value, lb_inclusive, upper_value, ub_inclusive);
@@ -699,6 +910,65 @@ BitmapIndex<T>::Range(const T lower_value,
     }
 }
 
+template <typename T>
+TargetBitmap
+BitmapIndex<T>::RangeForMmap(const T lower_value,
+                             bool lb_inclusive,
+                             const T upper_value,
+                             bool ub_inclusive) {
+    AssertInfo(is_built_, "index has not been built");
+    TargetBitmap res(total_num_rows_, false);
+    if (lower_value > upper_value ||
+        (lower_value == upper_value && !(lb_inclusive && ub_inclusive))) {
+        return res;
+    }
+    if (ShouldSkip(lower_value, upper_value, OpType::Range)) {
+        return res;
+    }
+
+    auto lb = bitmap_info_map_.begin();
+    auto ub = bitmap_info_map_.end();
+
+    if (lb_inclusive) {
+        lb = std::lower_bound(bitmap_info_map_.begin(),
+                              bitmap_info_map_.end(),
+                              std::make_pair(lower_value, TargetBitmap()),
+                              [](const auto& lhs, const auto& rhs) {
+                                  return lhs.first < rhs.first;
+                              });
+    } else {
+        lb = std::upper_bound(bitmap_info_map_.begin(),
+                              bitmap_info_map_.end(),
+                              std::make_pair(lower_value, TargetBitmap()),
+                              [](const auto& lhs, const auto& rhs) {
+                                  return lhs.first < rhs.first;
+                              });
+    }
+
+    if (ub_inclusive) {
+        ub = std::upper_bound(bitmap_info_map_.begin(),
+                              bitmap_info_map_.end(),
+                              std::make_pair(upper_value, TargetBitmap()),
+                              [](const auto& lhs, const auto& rhs) {
+                                  return lhs.first < rhs.first;
+                              });
+    } else {
+        ub = std::lower_bound(bitmap_info_map_.begin(),
+                              bitmap_info_map_.end(),
+                              std::make_pair(upper_value, TargetBitmap()),
+                              [](const auto& lhs, const auto& rhs) {
+                                  return lhs.first < rhs.first;
+                              });
+    }
+
+    for (; lb != ub; lb++) {
+        for (const auto& v : AccessBitmap(lb->second)) {
+            res.set(v);
+        }
+    }
+    return res;
+}
+
 template <typename T>
 TargetBitmap
 BitmapIndex<T>::RangeForRoaring(const T lower_value,
@@ -764,18 +1034,29 @@ BitmapIndex<T>::Reverse_Lookup(size_t idx) const {
     AssertInfo(is_built_, "index has not been built");
     AssertInfo(idx < total_num_rows_, "out of range of total coun");
 
-    if (build_mode_ == BitmapIndexBuildMode::ROARING) {
-        for (auto it = data_.begin(); it != data_.end(); it++) {
-            for (const auto& v : it->second) {
+    if (is_mmap_) {
+        for (auto it = bitmap_info_map_.begin(); it != bitmap_info_map_.end();
+             it++) {
+            for (const auto& v : AccessBitmap(it->second)) {
                 if (v == idx) {
                     return it->first;
                 }
             }
         }
     } else {
-        for (auto it = bitsets_.begin(); it != bitsets_.end(); it++) {
-            if (it->second[idx]) {
-                return it->first;
+        if (build_mode_ == BitmapIndexBuildMode::ROARING) {
+            for (auto it = data_.begin(); it != data_.end(); it++) {
+                for (const auto& v : it->second) {
+                    if (v == idx) {
+                        return it->first;
+                    }
+                }
+            }
+        } else {
+            for (auto it = bitsets_.begin(); it != bitsets_.end(); it++) {
+                if (it->second[idx]) {
+                    return it->first;
+                }
             }
         }
     }
@@ -828,6 +1109,15 @@ BitmapIndex<T>::ShouldSkip(const T lower_value,
         return should_skip;
     };
 
+    if (is_mmap_) {
+        if (!bitmap_info_map_.empty()) {
+            auto lower_bound = bitmap_info_map_.begin()->first;
+            auto upper_bound = bitmap_info_map_.rbegin()->first;
+            bool should_skip = skip(op, lower_bound, upper_bound);
+            return should_skip;
+        }
+    }
+
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         if (!data_.empty()) {
             auto lower_bound = data_.begin()->first;
@@ -861,6 +1151,19 @@ BitmapIndex<std::string>::Query(const DatasetPtr& dataset) {
     if (op == OpType::PrefixMatch) {
         auto prefix = dataset->Get<std::string>(PREFIX_VALUE);
         TargetBitmap res(total_num_rows_, false);
+        if (is_mmap_) {
+            for (auto it = bitmap_info_map_.begin();
+                 it != bitmap_info_map_.end();
+                 ++it) {
+                const auto& key = it->first;
+                if (milvus::query::Match(key, prefix, op)) {
+                    for (const auto& v : AccessBitmap(it->second)) {
+                        res.set(v);
+                    }
+                }
+            }
+            return res;
+        }
         if (build_mode_ == BitmapIndexBuildMode::ROARING) {
             for (auto it = data_.begin(); it != data_.end(); ++it) {
                 const auto& key = it->first;
@@ -898,6 +1201,18 @@ BitmapIndex<std::string>::RegexQuery(const std::string& regex_pattern) {
     AssertInfo(is_built_, "index has not been built");
     RegexMatcher matcher(regex_pattern);
     TargetBitmap res(total_num_rows_, false);
+    if (is_mmap_) {
+        for (auto it = bitmap_info_map_.begin(); it != bitmap_info_map_.end();
+             ++it) {
+            const auto& key = it->first;
+            if (matcher(key)) {
+                for (const auto& v : AccessBitmap(it->second)) {
+                    res.set(v);
+                }
+            }
+        }
+        return res;
+    }
     if (build_mode_ == BitmapIndexBuildMode::ROARING) {
         for (auto it = data_.begin(); it != data_.end(); ++it) {
             const auto& key = it->first;
diff --git a/internal/core/src/index/BitmapIndex.h b/internal/core/src/index/BitmapIndex.h
index 3bf279cf8b75b..a8acb99cf76af 100644
--- a/internal/core/src/index/BitmapIndex.h
+++ b/internal/core/src/index/BitmapIndex.h
@@ -30,6 +30,11 @@
 namespace milvus {
 namespace index {
 
+struct BitmapInfo {
+    size_t offset_;
+    size_t size_;
+};
+
 enum class BitmapIndexBuildMode {
     ROARING,
     BITSET,
@@ -46,7 +51,11 @@ class BitmapIndex : public ScalarIndex<T> {
         const storage::FileManagerContext& file_manager_context =
             storage::FileManagerContext());
 
-    ~BitmapIndex() override = default;
+    ~BitmapIndex() {
+        if (is_mmap_) {
+            UnmapIndexData();
+        }
+    }
 
     BinarySet
     Serialize(const Config& config) override;
@@ -146,6 +155,10 @@ class BitmapIndex : public ScalarIndex<T> {
  public:
     int64_t
     Cardinality() {
+        if (is_mmap_) {
+            return bitmap_info_map_.size();
+        }
+
         if (build_mode_ == BitmapIndexBuildMode::ROARING) {
             return data_.size();
         } else {
@@ -172,6 +185,9 @@ class BitmapIndex : public ScalarIndex<T> {
     std::pair<size_t, size_t>
     DeserializeIndexMeta(const uint8_t* data_ptr, size_t data_size);
 
+    void
+    DeserializeIndexDataForMmap(const char* data_ptr, size_t index_length);
+
     void
     DeserializeIndexData(const uint8_t* data_ptr, size_t index_length);
 
@@ -190,6 +206,9 @@ class BitmapIndex : public ScalarIndex<T> {
     TargetBitmap
     RangeForBitset(T value, OpType op);
 
+    TargetBitmap
+    RangeForMmap(T value, OpType op);
+
     TargetBitmap
     RangeForRoaring(T lower_bound_value,
                     bool lb_inclusive,
@@ -202,12 +221,35 @@ class BitmapIndex : public ScalarIndex<T> {
                    T upper_bound_value,
                    bool ub_inclusive);
 
+    TargetBitmap
+    RangeForMmap(T lower_bound_value,
+                 bool lb_inclusive,
+                 T upper_bound_value,
+                 bool ub_inclusive);
+
+    void
+    MMapIndexData(const std::string& filepath,
+                  const uint8_t* data,
+                  size_t data_size,
+                  size_t index_length);
+
+    roaring::Roaring
+    AccessBitmap(const BitmapInfo& info) const {
+        return roaring::Roaring::read(mmap_data_ + info.offset_, info.size_);
+    }
+
+    void
+    UnmapIndexData();
+
  public:
     bool is_built_{false};
-    Config config_;
     BitmapIndexBuildMode build_mode_;
     std::map<T, roaring::Roaring> data_;
     std::map<T, TargetBitmap> bitsets_;
+    bool is_mmap_{false};
+    char* mmap_data_;
+    int64_t mmap_size_;
+    std::map<T, BitmapInfo> bitmap_info_map_;
     size_t total_num_rows_{0};
     proto::schema::FieldSchema schema_;
     std::shared_ptr<storage::MemFileManagerImpl> file_manager_;
diff --git a/internal/core/src/index/HybridScalarIndex.cpp b/internal/core/src/index/HybridScalarIndex.cpp
index 84870bc09d118..d9ab3c13a1dcc 100644
--- a/internal/core/src/index/HybridScalarIndex.cpp
+++ b/internal/core/src/index/HybridScalarIndex.cpp
@@ -30,7 +30,8 @@ namespace index {
 template <typename T>
 HybridScalarIndex<T>::HybridScalarIndex(
     const storage::FileManagerContext& file_manager_context)
-    : is_built_(false),
+    : ScalarIndex<T>(HYBRID_INDEX_TYPE),
+      is_built_(false),
       bitmap_index_cardinality_limit_(DEFAULT_BITMAP_INDEX_CARDINALITY_BOUND),
       file_manager_context_(file_manager_context) {
     if (file_manager_context.Valid()) {
diff --git a/internal/core/src/index/Index.h b/internal/core/src/index/Index.h
index 0061253de620f..438b678e7f10e 100644
--- a/internal/core/src/index/Index.h
+++ b/internal/core/src/index/Index.h
@@ -24,6 +24,7 @@
 #include "knowhere/dataset.h"
 #include "common/Tracer.h"
 #include "common/Types.h"
+#include "index/Meta.h"
 
 const std::string kMmapFilepath = "mmap_filepath";
 const std::string kEnableMmap = "enable_mmap";
@@ -76,7 +77,10 @@ class IndexBase {
                index_type_ == knowhere::IndexEnum::INDEX_FAISS_BIN_IDMAP ||
                index_type_ ==
                    knowhere::IndexEnum::INDEX_SPARSE_INVERTED_INDEX ||
-               index_type_ == knowhere::IndexEnum::INDEX_SPARSE_WAND;
+               index_type_ == knowhere::IndexEnum::INDEX_SPARSE_WAND ||
+               // support mmap for bitmap/hybrid index
+               index_type_ == milvus::index::BITMAP_INDEX_TYPE ||
+               index_type_ == milvus::index::HYBRID_INDEX_TYPE;
     }
 
     const IndexType&
diff --git a/internal/core/src/index/InvertedIndexTantivy.cpp b/internal/core/src/index/InvertedIndexTantivy.cpp
index adcfdab0c33e9..994c8b0c05648 100644
--- a/internal/core/src/index/InvertedIndexTantivy.cpp
+++ b/internal/core/src/index/InvertedIndexTantivy.cpp
@@ -71,7 +71,8 @@ get_tantivy_data_type(const proto::schema::FieldSchema& schema) {
 template <typename T>
 InvertedIndexTantivy<T>::InvertedIndexTantivy(
     const storage::FileManagerContext& ctx)
-    : schema_(ctx.fieldDataMeta.field_schema) {
+    : ScalarIndex<T>(INVERTED_INDEX_TYPE),
+      schema_(ctx.fieldDataMeta.field_schema) {
     mem_file_manager_ = std::make_shared<MemFileManager>(ctx);
     disk_file_manager_ = std::make_shared<DiskFileManager>(ctx);
     auto field =
diff --git a/internal/core/src/index/InvertedIndexTantivy.h b/internal/core/src/index/InvertedIndexTantivy.h
index 7c3ade38b3747..8dac3291a358b 100644
--- a/internal/core/src/index/InvertedIndexTantivy.h
+++ b/internal/core/src/index/InvertedIndexTantivy.h
@@ -35,7 +35,9 @@ class InvertedIndexTantivy : public ScalarIndex<T> {
     using DiskFileManager = storage::DiskFileManagerImpl;
     using DiskFileManagerPtr = std::shared_ptr<DiskFileManager>;
 
-    InvertedIndexTantivy() = default;
+    InvertedIndexTantivy() : ScalarIndex<T>(INVERTED_INDEX_TYPE) {
+    }
+
     explicit InvertedIndexTantivy(const storage::FileManagerContext& ctx);
 
     ~InvertedIndexTantivy();
diff --git a/internal/core/src/index/ScalarIndex.h b/internal/core/src/index/ScalarIndex.h
index 1a3067256adce..6105ce4afb980 100644
--- a/internal/core/src/index/ScalarIndex.h
+++ b/internal/core/src/index/ScalarIndex.h
@@ -60,6 +60,9 @@ ToString(ScalarIndexType type) {
 template <typename T>
 class ScalarIndex : public IndexBase {
  public:
+    ScalarIndex(const std::string& index_type) : IndexBase(index_type) {
+    }
+
     void
     BuildWithRawData(size_t n,
                      const void* values,
diff --git a/internal/core/src/index/ScalarIndexSort.cpp b/internal/core/src/index/ScalarIndexSort.cpp
index 3d206a697f738..56396d7d192f3 100644
--- a/internal/core/src/index/ScalarIndexSort.cpp
+++ b/internal/core/src/index/ScalarIndexSort.cpp
@@ -36,7 +36,7 @@ namespace milvus::index {
 template <typename T>
 ScalarIndexSort<T>::ScalarIndexSort(
     const storage::FileManagerContext& file_manager_context)
-    : is_built_(false), data_() {
+    : ScalarIndex<T>(ASCENDING_SORT), is_built_(false), data_() {
     if (file_manager_context.Valid()) {
         file_manager_ =
             std::make_shared<storage::MemFileManagerImpl>(file_manager_context);
diff --git a/internal/core/src/index/StringIndex.h b/internal/core/src/index/StringIndex.h
index 07e19c54f34b9..3aa84927b1b90 100644
--- a/internal/core/src/index/StringIndex.h
+++ b/internal/core/src/index/StringIndex.h
@@ -29,6 +29,10 @@ namespace milvus::index {
 
 class StringIndex : public ScalarIndex<std::string> {
  public:
+    StringIndex(const std::string& index_type)
+        : ScalarIndex<std::string>(index_type) {
+    }
+
     const TargetBitmap
     Query(const DatasetPtr& dataset) override {
         auto op = dataset->Get<OpType>(OPERATOR_TYPE);
diff --git a/internal/core/src/index/StringIndexMarisa.cpp b/internal/core/src/index/StringIndexMarisa.cpp
index 6052532fc0a87..20b2b9dd99690 100644
--- a/internal/core/src/index/StringIndexMarisa.cpp
+++ b/internal/core/src/index/StringIndexMarisa.cpp
@@ -40,7 +40,8 @@
 namespace milvus::index {
 
 StringIndexMarisa::StringIndexMarisa(
-    const storage::FileManagerContext& file_manager_context) {
+    const storage::FileManagerContext& file_manager_context)
+    : StringIndex(MARISA_TRIE) {
     if (file_manager_context.Valid()) {
         file_manager_ =
             std::make_shared<storage::MemFileManagerImpl>(file_manager_context);
diff --git a/internal/core/src/storage/FileManager.h b/internal/core/src/storage/FileManager.h
index 87f94a1b4075d..5d22b79fde29c 100644
--- a/internal/core/src/storage/FileManager.h
+++ b/internal/core/src/storage/FileManager.h
@@ -31,6 +31,9 @@ namespace milvus::storage {
 struct FileManagerContext {
     FileManagerContext() : chunkManagerPtr(nullptr) {
     }
+    FileManagerContext(const ChunkManagerPtr& chunkManagerPtr)
+        : chunkManagerPtr(chunkManagerPtr) {
+    }
     FileManagerContext(const FieldDataMeta& fieldDataMeta,
                        const IndexMeta& indexMeta,
                        const ChunkManagerPtr& chunkManagerPtr)
diff --git a/internal/core/unittest/test_bitmap_index.cpp b/internal/core/unittest/test_bitmap_index.cpp
index 3ea8811965ab2..ed7833ff3002c 100644
--- a/internal/core/unittest/test_bitmap_index.cpp
+++ b/internal/core/unittest/test_bitmap_index.cpp
@@ -105,7 +105,7 @@ class BitmapIndexTest : public testing::Test {
         auto serialized_bytes = insert_data.Serialize(storage::Remote);
 
         auto log_path = fmt::format("/{}/{}/{}/{}/{}/{}",
-                                    "/tmp/test_bitmap/",
+                                    "/tmp/test-bitmap-index/",
                                     collection_id,
                                     partition_id,
                                     segment_id,
@@ -137,6 +137,16 @@ class BitmapIndexTest : public testing::Test {
 
         config["index_files"] = index_files;
 
+        if (is_mmap_) {
+            config["enable_mmap"] = "true";
+            config["mmap_filepath"] = fmt::format("/{}/{}/{}/{}/{}",
+                                                  "/tmp/test-bitmap-index/",
+                                                  collection_id,
+                                                  1,
+                                                  segment_id,
+                                                  field_id);
+            ;
+        }
         index_ =
             index::IndexFactory::GetInstance().CreateIndex(index_info, ctx);
         index_->Load(milvus::tracer::TraceContext{}, config);
@@ -247,7 +257,7 @@ class BitmapIndexTest : public testing::Test {
                     auto should = ref(i);
                     ASSERT_EQ(ans, should)
                         << "op: " << op << ", @" << i << ", ans: " << ans
-                        << ", ref: " << should;
+                        << ", ref: " << should << "|" << data_[i];
                 }
             }
         }
@@ -318,6 +328,7 @@ class BitmapIndexTest : public testing::Test {
     DataType type_;
     size_t nb_;
     size_t cardinality_;
+    bool is_mmap_ = false;
     boost::container::vector<T> data_;
     std::shared_ptr<storage::ChunkManager> chunk_manager_;
 };
@@ -400,4 +411,55 @@ REGISTER_TYPED_TEST_SUITE_P(BitmapIndexTestV2,
 
 INSTANTIATE_TYPED_TEST_SUITE_P(BitmapIndexE2ECheck_HighCardinality,
                                BitmapIndexTestV2,
+                               BitmapType);
+
+template <typename T>
+class BitmapIndexTestV3 : public BitmapIndexTest<T> {
+ public:
+    virtual void
+    SetParam() override {
+        this->nb_ = 10000;
+        this->cardinality_ = 2000;
+        this->is_mmap_ = true;
+    }
+
+    virtual ~BitmapIndexTestV3() {
+    }
+};
+
+TYPED_TEST_SUITE_P(BitmapIndexTestV3);
+
+TYPED_TEST_P(BitmapIndexTestV3, CountFuncTest) {
+    auto count = this->index_->Count();
+    EXPECT_EQ(count, this->nb_);
+}
+
+TYPED_TEST_P(BitmapIndexTestV3, INFuncTest) {
+    this->TestInFunc();
+}
+
+TYPED_TEST_P(BitmapIndexTestV3, NotINFuncTest) {
+    this->TestNotInFunc();
+}
+
+TYPED_TEST_P(BitmapIndexTestV3, CompareValFuncTest) {
+    this->TestCompareValueFunc();
+}
+
+TYPED_TEST_P(BitmapIndexTestV3, TestRangeCompareFuncTest) {
+    this->TestRangeCompareFunc();
+}
+
+using BitmapType =
+    testing::Types<int8_t, int16_t, int32_t, int64_t, std::string>;
+
+REGISTER_TYPED_TEST_SUITE_P(BitmapIndexTestV3,
+                            CountFuncTest,
+                            INFuncTest,
+                            NotINFuncTest,
+                            CompareValFuncTest,
+                            TestRangeCompareFuncTest);
+
+INSTANTIATE_TYPED_TEST_SUITE_P(BitmapIndexE2ECheck_Mmap,
+                               BitmapIndexTestV3,
                                BitmapType);
\ No newline at end of file
diff --git a/internal/core/unittest/test_scalar_index.cpp b/internal/core/unittest/test_scalar_index.cpp
index d6206285410a4..8ca5067d007ef 100644
--- a/internal/core/unittest/test_scalar_index.cpp
+++ b/internal/core/unittest/test_scalar_index.cpp
@@ -27,6 +27,7 @@
 #include <boost/filesystem.hpp>
 #include "test_utils/storage_test_utils.h"
 #include "test_utils/TmpPath.h"
+#include "storage/Util.h"
 
 constexpr int64_t nb = 100;
 namespace indexcgo = milvus::proto::indexcgo;
@@ -55,7 +56,11 @@ TYPED_TEST_P(TypedScalarIndexTest, Dummy) {
 
 auto
 GetTempFileManagerCtx(CDataType data_type) {
-    auto ctx = milvus::storage::FileManagerContext();
+    milvus::storage::StorageConfig storage_config;
+    storage_config.storage_type = "local";
+    storage_config.root_path = "/tmp/local/";
+    auto chunk_manager = milvus::storage::CreateChunkManager(storage_config);
+    auto ctx = milvus::storage::FileManagerContext(chunk_manager);
     ctx.fieldDataMeta.field_schema.set_data_type(
         static_cast<milvus::proto::schema::DataType>(data_type));
     return ctx;
diff --git a/pkg/util/indexparamcheck/bitmap_index_checker.go b/pkg/util/indexparamcheck/bitmap_index_checker.go
index f19b472baa7e9..f19943a50ea93 100644
--- a/pkg/util/indexparamcheck/bitmap_index_checker.go
+++ b/pkg/util/indexparamcheck/bitmap_index_checker.go
@@ -16,6 +16,9 @@ func (c *BITMAPChecker) CheckTrain(params map[string]string) error {
 }
 
 func (c *BITMAPChecker) CheckValidDataType(field *schemapb.FieldSchema) error {
+	if field.IsPrimaryKey {
+		return fmt.Errorf("create bitmap index on primary key not supported")
+	}
 	mainType := field.GetDataType()
 	elemType := field.GetElementType()
 	if !typeutil.IsBoolType(mainType) && !typeutil.IsIntegerType(mainType) &&
diff --git a/pkg/util/indexparamcheck/index_type.go b/pkg/util/indexparamcheck/index_type.go
index eef92ac9de835..746f4af0b9f59 100644
--- a/pkg/util/indexparamcheck/index_type.go
+++ b/pkg/util/indexparamcheck/index_type.go
@@ -60,7 +60,9 @@ func IsMmapSupported(indexType IndexType) bool {
 		indexType == IndexHNSW ||
 		indexType == IndexScaNN ||
 		indexType == IndexSparseInverted ||
-		indexType == IndexSparseWand
+		indexType == IndexSparseWand ||
+		indexType == IndexBitmap ||
+		indexType == IndexHybrid
 }
 
 func IsDiskIndex(indexType IndexType) bool {