diff --git a/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductTags/ProductTagAppService.cs b/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductTags/ProductTagAppService.cs
new file mode 100644
index 000000000..75f344eb2
--- /dev/null
+++ b/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductTags/ProductTagAppService.cs
@@ -0,0 +1,62 @@
+using EasyAbp.EShop.Products.ProductTags.Dtos;
+using System;
+using System.Linq;
+using System.Threading.Tasks;
+using EasyAbp.EShop.Products.Authorization;
+using Volo.Abp;
+using Volo.Abp.Application.Services;
+using Volo.Abp.Domain.Repositories;
+
+namespace EasyAbp.EShop.Products.ProductTags
+{
+    class ProductTagAppService : CrudAppService<ProductTag, ProductTagDto, Guid, GetProductTagListDto, object, object>,
+        IProductTagAppService
+    {
+        public ProductTagAppService(IRepository<ProductTag, Guid> repository) : base(repository)
+        {
+        }
+
+        protected override string GetListPolicyName { get; set; } = ProductsPermissions.Products.Default;
+
+        protected override IQueryable<ProductTag> CreateFilteredQuery(GetProductTagListDto input)
+        {
+            var queryable = Repository.AsQueryable();
+
+            if (input.TagId.HasValue)
+            {
+                queryable = queryable.Where(x => x.TagId == input.TagId);
+            }
+
+            if (input.ProductId.HasValue)
+            {
+                queryable = queryable.Where(x => x.ProductId == input.ProductId);
+            }
+
+            return queryable;
+        }
+
+        [RemoteService(false)]
+        public override Task<ProductTagDto> GetAsync(Guid id)
+        {
+            throw new NotSupportedException();
+        }
+
+        [RemoteService(false)]
+        public override Task<ProductTagDto> CreateAsync(object input)
+        {
+            throw new NotSupportedException();
+        }
+
+        [RemoteService(false)]
+        public override Task<ProductTagDto> UpdateAsync(Guid id, object input)
+        {
+            throw new NotSupportedException();
+        }
+
+        [RemoteService(false)]
+        public override Task DeleteAsync(Guid id)
+        {
+            throw new NotSupportedException();
+        }
+    }
+}
diff --git a/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductsApplicationAutoMapperProfile.cs b/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductsApplicationAutoMapperProfile.cs
index 136fc6192..ec3ac8052 100644
--- a/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductsApplicationAutoMapperProfile.cs
+++ b/modules/EasyAbp.EShop.Products/src/EasyAbp.EShop.Products.Application/EasyAbp/EShop/Products/ProductsApplicationAutoMapperProfile.cs
@@ -14,6 +14,10 @@
 using EasyAbp.EShop.Products.ProductDetailHistories.Dtos;
 using EasyAbp.EShop.Products.ProductHistories;
 using EasyAbp.EShop.Products.ProductHistories.Dtos;
+using EasyAbp.EShop.Products.ProductTags;
+using EasyAbp.EShop.Products.ProductTags.Dtos;
+using EasyAbp.EShop.Products.Tags;
+using EasyAbp.EShop.Products.Tags.Dtos;
 using Volo.Abp.AutoMapper;
 using Volo.Abp.DependencyInjection;
 
@@ -63,6 +67,10 @@ public ProductsApplicationAutoMapperProfile(IAttributeOptionIdsSerializer attrib
             CreateMap<ProductCategory, ProductCategoryDto>();
             CreateMap<ProductHistory, ProductHistoryDto>();
             CreateMap<ProductDetailHistory, ProductDetailHistoryDto>();
+            CreateMap<CreateTagDto, TagDto>(MemberList.Source);
+            CreateMap<UpdateTagDto, TagDto>(MemberList.Source);
+            CreateMap<Tag, TagDto>();
+            CreateMap<ProductTag, ProductTagDto>();
         }
     }
 }