diff --git a/common/include/constants/distributed_camera_constants.h b/common/include/constants/distributed_camera_constants.h
index 979c3eb5c62381691d361d63c891bb03c8c2e2c0..256713fb614fb0eee9622fb87b883a29197e1108 100644
--- a/common/include/constants/distributed_camera_constants.h
+++ b/common/include/constants/distributed_camera_constants.h
@@ -122,6 +122,10 @@ const int32_t HICOLLIE_INTERVAL_TIME_MS = 20 * 1000;
 const int32_t HICOLLIE_DELAY_TIME_MS = 5 * 1000;
 const size_t HICOLLIE_SLEEP_TIME_US = 5 * 1000 * 1000;
 
+const int32_t CAMERA_META_DATA_ITEM_CAPACITY = 10;
+const int32_t CAMERA_META_DATA_DATA_CAPACITY = 100;
+const int32_t DCAMERA_UID = 3052;
+
 const uint32_t DCAMERA_SHIFT_32 = 32;
 const uint32_t DCAMERA_SHIFT_24 = 24;
 const uint32_t DCAMERA_SHIFT_16 = 16;
diff --git a/services/cameraservice/cameraoperator/client/src/callback/dcamera_session_callback.cpp b/services/cameraservice/cameraoperator/client/src/callback/dcamera_session_callback.cpp
index 3f02cb6c5eb203f776743bf378e8235a21b015c5..4a532c72a263ecd575251e8de5ea3dc2592a3657 100644
--- a/services/cameraservice/cameraoperator/client/src/callback/dcamera_session_callback.cpp
+++ b/services/cameraservice/cameraoperator/client/src/callback/dcamera_session_callback.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2021-2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
@@ -55,13 +55,11 @@ void DCameraSessionCallback::OnFocusState(FocusState state)
         return;
     }
 
-    int32_t itemCapacity = 10;
-    int32_t dataCapacity = 100;
-    int32_t dataCount = 1;
+    int32_t dataCountStartNum = 1;
     uint8_t focusState = iter->second;
     std::shared_ptr<Camera::CameraMetadata> cameraMetadata =
-        std::make_shared<Camera::CameraMetadata>(itemCapacity, dataCapacity);
-    if (!cameraMetadata->addEntry(OHOS_CONTROL_FOCUS_STATE, &focusState, dataCount)) {
+        std::make_shared<Camera::CameraMetadata>(CAMERA_META_DATA_ITEM_CAPACITY, CAMERA_META_DATA_DATA_CAPACITY);
+    if (!cameraMetadata->addEntry(OHOS_CONTROL_FOCUS_STATE, &focusState, dataCountStartNum)) {
         DHLOGE("cameraMetadata add entry failed");
         return;
     }
diff --git a/services/cameraservice/sinkservice/include/distributedcameramgr/dcamera_sink_controller.h b/services/cameraservice/sinkservice/include/distributedcameramgr/dcamera_sink_controller.h
index beee7451019c4cd41af71c202827b1b44005bf3c..7e9b449193ceb27f26db8ae031c060cad104ec65 100644
--- a/services/cameraservice/sinkservice/include/distributedcameramgr/dcamera_sink_controller.h
+++ b/services/cameraservice/sinkservice/include/distributedcameramgr/dcamera_sink_controller.h
@@ -75,6 +75,7 @@ private:
     bool CheckDeviceSecurityLevel(const std::string &srcDeviceId, const std::string &dstDeviceId);
     int32_t GetDeviceSecurityLevel(const std::string &udid);
     std::string GetUdidByNetworkId(const std::string &networkId);
+    bool CheckPermission();
 
     bool isInit_;
     int32_t sessionState_;
diff --git a/services/cameraservice/sinkservice/src/distributedcameramgr/dcamera_sink_controller.cpp b/services/cameraservice/sinkservice/src/distributedcameramgr/dcamera_sink_controller.cpp
index a97b7cec9baf221a59fd3eda51ba0a42ed7a6d37..184995989d9b7fa95f1ddbb8628b9f8e2c80500f 100644
--- a/services/cameraservice/sinkservice/src/distributedcameramgr/dcamera_sink_controller.cpp
+++ b/services/cameraservice/sinkservice/src/distributedcameramgr/dcamera_sink_controller.cpp
@@ -37,6 +37,7 @@
 #include "device_security_defines.h"
 #include "device_security_info.h"
 #include "idistributed_camera_source.h"
+#include "ipc_skeleton.h"
 #include "json/json.h"
 #include "dcamera_low_latency.h"
 #include <sys/prctl.h>
@@ -177,6 +178,10 @@ int32_t DCameraSinkController::DCameraNotify(std::shared_ptr<DCameraEvent>& even
 int32_t DCameraSinkController::UpdateSettings(std::vector<std::shared_ptr<DCameraSettings>>& settings)
 {
     DHLOGI("UpdateSettings dhId: %s", GetAnonyString(dhId_).c_str());
+    if (!CheckPermission()) {
+        DHLOGE("DCameraSinkController UpdateSettings fail, CheckPermission fail");
+        return DCAMERA_WRONG_STATE;
+    }
     int32_t ret = operator_->UpdateSettings(settings);
     if (ret != DCAMERA_OK) {
         DHLOGE("UpdateSettings failed, dhId: %s, ret: %d", GetAnonyString(dhId_).c_str(), ret);
@@ -197,6 +202,10 @@ int32_t DCameraSinkController::GetCameraInfo(std::shared_ptr<DCameraInfo>& camIn
 int32_t DCameraSinkController::OpenChannel(std::shared_ptr<DCameraOpenInfo>& openInfo)
 {
     DHLOGI("OpenChannel dhId: %s", GetAnonyString(dhId_).c_str());
+    if (!CheckPermission()) {
+        DHLOGE("DCameraSinkController OpenChannel fail, CheckPermission fail");
+        return DCAMERA_WRONG_STATE;
+    }
     if (sessionState_ != DCAMERA_CHANNEL_STATE_DISCONNECTED) {
         DHLOGE("wrong state, dhId: %s, sessionState: %d", GetAnonyString(dhId_).c_str(), sessionState_);
         return DCAMERA_WRONG_STATE;
@@ -664,6 +673,13 @@ std::string DCameraSinkController::GetUdidByNetworkId(const std::string &network
     return udid;
 }
 
+bool DCameraSinkController::CheckPermission()
+{
+    DHLOGI("DCameraSinkController CheckPermission Start");
+    auto uid = IPCSkeleton::GetCallingUid();
+    return uid == DCAMERA_UID;
+}
+
 void DeviceInitCallback::OnRemoteDied()
 {
     DHLOGI("DeviceInitCallback OnRemoteDied");