diff --git a/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepository.java b/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepository.java
index dfe59d65..feb78377 100644
--- a/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepository.java
+++ b/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepository.java
@@ -19,7 +19,9 @@ public interface CctvRepository {
 
     void deleteByGroupId(Long groupId);
 
-    Optional<CctvEntity> findByCctvId(Long thingId);
+    Optional<CctvEntity> findByCctvId(Long cctvId);
 
     List<CctvEntity> findByGroupId(Long groupId);
+
+    Optional<CctvEntity> findByThingId(String thingId);
 }
diff --git a/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepositoryImpl.java b/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepositoryImpl.java
index 6ed29fc3..18935521 100644
--- a/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepositoryImpl.java
+++ b/src/main/java/org/ioteatime/meonghanyangserver/cctv/repository/CctvRepositoryImpl.java
@@ -1,6 +1,7 @@
 package org.ioteatime.meonghanyangserver.cctv.repository;
 
 import static org.ioteatime.meonghanyangserver.cctv.domain.QCctvEntity.cctvEntity;
+import static org.ioteatime.meonghanyangserver.group.domain.QGroupEntity.groupEntity;
 
 import com.querydsl.core.types.Projections;
 import com.querydsl.jpa.impl.JPAQueryFactory;
@@ -83,4 +84,15 @@ public List<CctvEntity> findByGroupId(Long groupId) {
 
         return result;
     }
+
+    @Override
+    public Optional<CctvEntity> findByThingId(String thingId) {
+        return Optional.ofNullable(
+                jpaQueryFactory
+                        .selectFrom(cctvEntity)
+                        .join(cctvEntity.group, groupEntity)
+                        .fetchJoin()
+                        .where(cctvEntity.thingId.eq(thingId))
+                        .fetchOne());
+    }
 }
diff --git a/src/main/java/org/ioteatime/meonghanyangserver/clients/iot/AIDetectClient.java b/src/main/java/org/ioteatime/meonghanyangserver/clients/iot/AIDetectClient.java
new file mode 100644
index 00000000..6292167c
--- /dev/null
+++ b/src/main/java/org/ioteatime/meonghanyangserver/clients/iot/AIDetectClient.java
@@ -0,0 +1,57 @@
+package org.ioteatime.meonghanyangserver.clients.iot;
+
+import java.util.Arrays;
+import java.util.Optional;
+import lombok.extern.slf4j.Slf4j;
+import org.ioteatime.meonghanyangserver.cctv.domain.CctvEntity;
+import org.ioteatime.meonghanyangserver.cctv.repository.CctvRepository;
+import org.ioteatime.meonghanyangserver.clients.google.FcmClient;
+import org.ioteatime.meonghanyangserver.common.exception.BadRequestException;
+import org.ioteatime.meonghanyangserver.common.type.IoTErrorType;
+import org.springframework.stereotype.Component;
+import software.amazon.awssdk.crt.mqtt.MqttMessage;
+
+// 객체 탐지 클라이언트
+@Slf4j
+@Component
+public class AIDetectClient {
+    private final FcmClient fcmClient;
+    private final IotMqttClient iotMqttClient;
+    private final CctvRepository cctvRepository;
+
+    public AIDetectClient(
+            FcmClient fcmClient, IotMqttClient iotMqttClient, CctvRepository cctvRepository) {
+        this.fcmClient = fcmClient;
+        this.iotMqttClient = iotMqttClient;
+        this.cctvRepository = cctvRepository;
+
+        iotMqttClient.subscribe("/mhn/event/detect/things/#", this::handleDetectEvent);
+        iotMqttClient.subscribe("/mhn/event/detect/things/+", this::handleDetectEvent);
+        log.info("[객체 탐지] {}", "탐지 Topic을 구독하였습니다.");
+    }
+
+    private void handleDetectEvent(MqttMessage mqttMessage) {
+        log.info("[객체 탐지] {}", "탐지 Topic이 발행되었습니다.");
+        // thingId 기준 GroupId 검색
+        if (mqttMessage.getTopic() == null || mqttMessage.getTopic().isEmpty()) {
+            throw new BadRequestException(IoTErrorType.TOPIC_NULL);
+        }
+        Optional<CctvEntity> cctvEntity =
+                cctvRepository.findByThingId(getThingIdFromTopic(mqttMessage));
+        if (cctvEntity.isPresent()) {
+            CctvEntity cctv = cctvEntity.get();
+            fcmClient.sendPush(
+                    "뽀삐가 나타났어요!",
+                    Arrays.toString(mqttMessage.getPayload()),
+                    cctv.getGroup().getFcmTopic());
+            log.info(
+                    "[객체 탐지 알림] {}",
+                    cctv.getGroup().getGroupName() + " 그룹 객체 탐지 푸시 알림 전송에 성공하였습니다.");
+        }
+    }
+
+    private static String getThingIdFromTopic(MqttMessage mqttMessage) {
+        String topic = mqttMessage.getTopic();
+        return topic.substring(topic.lastIndexOf('/') + 1);
+    }
+}
diff --git a/src/main/java/org/ioteatime/meonghanyangserver/common/type/IoTErrorType.java b/src/main/java/org/ioteatime/meonghanyangserver/common/type/IoTErrorType.java
index 3771888a..bee7708c 100644
--- a/src/main/java/org/ioteatime/meonghanyangserver/common/type/IoTErrorType.java
+++ b/src/main/java/org/ioteatime/meonghanyangserver/common/type/IoTErrorType.java
@@ -1,7 +1,8 @@
 package org.ioteatime.meonghanyangserver.common.type;
 
 public enum IoTErrorType implements ErrorTypeCode {
-    UPDATE_SHADOW("INTERNAL_SERVER", "Shadow 갱신에 실패하였습니다.");
+    UPDATE_SHADOW("INTERNAL_SERVER", "Shadow 갱신에 실패하였습니다."),
+    TOPIC_NULL("BAD_REQUEST", "Topic이 Null입니다.");
 
     private final String message;
     private final String description;