diff --git a/core/bus_center/ipc/include/lnn_bus_center_ipc.h b/core/bus_center/ipc/include/lnn_bus_center_ipc.h
index 31e3a5a44a0ca6e2ee8977cb38160724946e7b73..e0e60b1b7a12da2a3f0da8283a9b1878ac3ad29b 100644
--- a/core/bus_center/ipc/include/lnn_bus_center_ipc.h
+++ b/core/bus_center/ipc/include/lnn_bus_center_ipc.h
@@ -36,7 +36,7 @@ int32_t LnnIpcGetNodeKeyInfo(const char *pkgName, const char *networkId, int key
 int32_t LnnIpcSetNodeDataChangeFlag(const char *pkgName, const char *networkId, uint16_t dataChangeFlag);
 int32_t LnnIpcGetNodeKeyInfoLen(int32_t key);
 int32_t LnnIpcStartTimeSync(const char *pkgName, const char *targetNetworkId, int32_t accuracy, int32_t period);
-int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId);
+int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid);
 int32_t LnnIpcPublishLNN(const char *pkgName, const PublishInfo *info);
 int32_t LnnIpcStopPublishLNN(const char *pkgName, int32_t publishId);
 int32_t LnnIpcRefreshLNN(const char *pkgName, const SubscribeInfo *info);
diff --git a/core/bus_center/ipc/mini/lnn_bus_center_ipc.c b/core/bus_center/ipc/mini/lnn_bus_center_ipc.c
index c121467662cdde99800de51997d0073e62c64a69..c4e27376c5f3d324288fa058a4f4da3a89c97a94 100644
--- a/core/bus_center/ipc/mini/lnn_bus_center_ipc.c
+++ b/core/bus_center/ipc/mini/lnn_bus_center_ipc.c
@@ -94,9 +94,9 @@ int32_t LnnIpcStartTimeSync(const char *pkgName, const char *targetNetworkId, in
     return LnnStartTimeSync(pkgName, targetNetworkId, (TimeSyncAccuracy)accuracy, (TimeSyncPeriod)period);
 }
 
-int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId)
+int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid)
 {
-    return LnnStopTimeSync(pkgName, targetNetworkId);
+    return LnnStopTimeSync(pkgName, targetNetworkId, callingPid);
 }
 
 int32_t LnnIpcPublishLNN(const char *pkgName, const PublishInfo *info)
diff --git a/core/bus_center/ipc/small/src/lnn_bus_center_ipc.c b/core/bus_center/ipc/small/src/lnn_bus_center_ipc.c
index 093dd3499089eb47cf135eb11176c1acf9bf7327..94f086eb6bbb8b253205b54e6b5b19aa004062bd 100644
--- a/core/bus_center/ipc/small/src/lnn_bus_center_ipc.c
+++ b/core/bus_center/ipc/small/src/lnn_bus_center_ipc.c
@@ -290,9 +290,9 @@ int32_t LnnIpcStartTimeSync(const char *pkgName, const char *targetNetworkId, in
     return LnnStartTimeSync(pkgName, targetNetworkId, (TimeSyncAccuracy)accuracy, (TimeSyncPeriod)period);
 }
 
-int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId)
+int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid)
 {
-    return LnnStopTimeSync(pkgName, targetNetworkId);
+    return LnnStopTimeSync(pkgName, targetNetworkId, callingPid);
 }
 
 int32_t LnnIpcPublishLNN(const char *pkgName, const PublishInfo *info)
diff --git a/core/bus_center/ipc/standard/src/lnn_bus_center_ipc.cpp b/core/bus_center/ipc/standard/src/lnn_bus_center_ipc.cpp
index dee178e0bb213a2b1ff09973ec8ccc143c9c69b9..88f4d4d2b8ce67ccbef70200982ff9d289442c32 100644
--- a/core/bus_center/ipc/standard/src/lnn_bus_center_ipc.cpp
+++ b/core/bus_center/ipc/standard/src/lnn_bus_center_ipc.cpp
@@ -304,9 +304,9 @@ int32_t LnnIpcStartTimeSync(const char *pkgName, const char *targetNetworkId, in
     return LnnStartTimeSync(pkgName, targetNetworkId, (TimeSyncAccuracy)accuracy, (TimeSyncPeriod)period);
 }
 
-int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId)
+int32_t LnnIpcStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid)
 {
-    return LnnStopTimeSync(pkgName, targetNetworkId);
+    return LnnStopTimeSync(pkgName, targetNetworkId, callingPid);
 }
 
 int32_t LnnIpcPublishLNN(const char *pkgName, const PublishInfo *info)
diff --git a/core/bus_center/lnn/lane_hub/time_sync/include/lnn_time_sync_manager.h b/core/bus_center/lnn/lane_hub/time_sync/include/lnn_time_sync_manager.h
index a0bc811dbc821c6b4ff7a5e7c0b43fe8b55c9711..6ac9db2ef083fe6858ebcdf79c419799dd9c8438 100644
--- a/core/bus_center/lnn/lane_hub/time_sync/include/lnn_time_sync_manager.h
+++ b/core/bus_center/lnn/lane_hub/time_sync/include/lnn_time_sync_manager.h
@@ -25,7 +25,7 @@ extern "C" {
 
 int32_t LnnStartTimeSync(const char *pkgName, const char *targetNetworkId,
     TimeSyncAccuracy accuracy, TimeSyncPeriod period);
-int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId);
+int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid);
 
 int32_t LnnInitTimeSync(void);
 void LnnDeinitTimeSync(void);
diff --git a/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager.c b/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager.c
index f0b47a03b9b3edde18e05bca1703edf7cf53da0d..092797d797710d9e1f60e3e12b5c824201d19ece 100644
--- a/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager.c
+++ b/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager.c
@@ -39,6 +39,7 @@ typedef enum {
 typedef struct {
     ListNode node;
     char pkgName[PKG_NAME_SIZE_MAX];
+    int32_t pid;
     TimeSyncAccuracy accuracy;
     TimeSyncPeriod period;
 } StartTimeSyncReq;
@@ -61,12 +62,14 @@ typedef struct {
 
 typedef struct {
     char pkgName[PKG_NAME_SIZE_MAX];
+    int32_t pid;
     char targetNetworkId[NETWORK_ID_BUF_LEN];
     TimeSyncAccuracy accuracy;
     TimeSyncPeriod period;
 } StartTimeSyncReqMsgPara;
 
 typedef struct {
+    int32_t pid;
     char pkgName[PKG_NAME_SIZE_MAX];
     char targetNetworkId[NETWORK_ID_BUF_LEN];
 } StopTimeSyncReqMsgPara;
@@ -165,12 +168,12 @@ static int32_t TryUpdateStartTimeSyncReq(TimeSyncReqInfo *info, const StartTimeS
     return SOFTBUS_OK;
 }
 
-static void RemoveStartTimeSyncReq(const TimeSyncReqInfo *info, const char *pkgName)
+static void RemoveStartTimeSyncReq(const TimeSyncReqInfo *info, const char *pkgName, int32_t callingPid)
 {
     StartTimeSyncReq *item = NULL;
 
     LIST_FOR_EACH_ENTRY(item, &info->startReqList, StartTimeSyncReq, node) {
-        if (strcmp(pkgName, item->pkgName) != 0) {
+        if (strcmp(pkgName, item->pkgName) != 0 || item->pid != callingPid) {
             continue;
         }
         ListDelete(&item->node);
@@ -224,7 +227,7 @@ static int32_t ProcessStartTimeSyncRequest(const StartTimeSyncReqMsgPara *para)
             if (LnnStartTimeSyncImpl(existInfo->targetNetworkId, existInfo->curAccuracy,
                 existInfo->curPeriod, &g_timeSyncImplCb) != SOFTBUS_OK) {
                 SoftBusLog(SOFTBUS_LOG_LNN, SOFTBUS_LOG_ERROR, "start time sync fail");
-                RemoveStartTimeSyncReq(existInfo, para->pkgName);
+                RemoveStartTimeSyncReq(existInfo, para->pkgName, para->pid);
                 break;
             }
         }
@@ -290,7 +293,7 @@ static int32_t ProcessStopTimeSyncRequest(const StopTimeSyncReqMsgPara *para)
         SoftBusFree((void *)para);
         return SOFTBUS_ERR;
     }
-    RemoveStartTimeSyncReq(info, para->pkgName);
+    RemoveStartTimeSyncReq(info, para->pkgName, para->pid);
     TryUpdateTimeSyncReq(info);
     SoftBusFree((void *)para);
     return SOFTBUS_OK;
@@ -332,7 +335,7 @@ static void RemoveAllStartTimeSyncReq(TimeSyncReqInfo *info)
     StartTimeSyncReq *startTimeSyncNextItem = NULL;
 
     LIST_FOR_EACH_ENTRY_SAFE(startTimeSyncItem, startTimeSyncNextItem, &info->startReqList, StartTimeSyncReq, node) {
-        RemoveStartTimeSyncReq(info, startTimeSyncItem->pkgName);
+        RemoveStartTimeSyncReq(info, startTimeSyncItem->pkgName, startTimeSyncItem->pid);
     }
     (void)LnnStopTimeSyncImpl(info->targetNetworkId);
     ListDelete(&info->node);
@@ -526,7 +529,7 @@ int32_t LnnStartTimeSync(const char *pkgName, const char *targetNetworkId,
     return SOFTBUS_OK;
 }
 
-int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId)
+int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid)
 {
     StopTimeSyncReqMsgPara *para = NULL;
 
@@ -543,6 +546,7 @@ int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId)
         SoftBusLog(SOFTBUS_LOG_LNN, SOFTBUS_LOG_ERROR, "malloc stop time sync request msg para fail");
         return SOFTBUS_MALLOC_ERR;
     }
+    para->pid = callingPid;
     if (strncpy_s(para->pkgName, PKG_NAME_SIZE_MAX, pkgName, strlen(pkgName)) != EOK ||
         strncpy_s(para->targetNetworkId, NETWORK_ID_BUF_LEN, targetNetworkId, strlen(targetNetworkId)) != EOK) {
         SoftBusLog(SOFTBUS_LOG_LNN, SOFTBUS_LOG_ERROR, "copy time sync request info fail");
diff --git a/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager_virtual.c b/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager_virtual.c
index efd851fb5f0049131a92f829ec60e7cdec71f8ba..2708802dd683fa84d4fbd6bc52c08d9bd41fe535 100644
--- a/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager_virtual.c
+++ b/core/bus_center/lnn/lane_hub/time_sync/src/lnn_time_sync_manager_virtual.c
@@ -28,10 +28,11 @@ int32_t LnnStartTimeSync(const char *pkgName, const char *targetNetworkId,
     return SOFTBUS_NOT_IMPLEMENT;
 }
 
-int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId)
+int32_t LnnStopTimeSync(const char *pkgName, const char *targetNetworkId, int32_t callingPid)
 {
     (void)pkgName;
     (void)targetNetworkId;
+    (void)callingPid;
     return SOFTBUS_NOT_IMPLEMENT;
 }
 
diff --git a/core/frame/small/init/src/bus_center_server_stub.c b/core/frame/small/init/src/bus_center_server_stub.c
index f7ef191a40283004295bb9d47a19449c64e70a1e..198d46f2c81359ac7234f8de14125d7f2f264961 100644
--- a/core/frame/small/init/src/bus_center_server_stub.c
+++ b/core/frame/small/init/src/bus_center_server_stub.c
@@ -286,7 +286,7 @@ int32_t ServerStopTimeSync(IpcIo *req, IpcIo *reply)
         SoftBusLog(SOFTBUS_LOG_COMM, SOFTBUS_LOG_ERROR, "ServerStopTimeSync no permission.");
         return SOFTBUS_PERMISSION_DENIED;
     }
-    int32_t ret = LnnIpcStopTimeSync(pkgName, targetNetworkId);
+    int32_t ret = LnnIpcStopTimeSync(pkgName, targetNetworkId, 0);
     if (ret != SOFTBUS_OK) {
         SoftBusLog(SOFTBUS_LOG_COMM, SOFTBUS_LOG_ERROR, "ServerStopTimeSync start time sync failed.");
         return SOFTBUS_ERR;
diff --git a/core/frame/standard/init/src/softbus_server.cpp b/core/frame/standard/init/src/softbus_server.cpp
index a26e76fc66a447a8405ef566f11f4d9cc5f6f3c2..065a95e5bd7ef048491b133c73a827eed2ec68b1 100644
--- a/core/frame/standard/init/src/softbus_server.cpp
+++ b/core/frame/standard/init/src/softbus_server.cpp
@@ -222,7 +222,8 @@ int32_t SoftBusServer::StartTimeSync(const char *pkgName, const char *targetNetw
 
 int32_t SoftBusServer::StopTimeSync(const char *pkgName, const char *targetNetworkId)
 {
-    return LnnIpcStopTimeSync(pkgName, targetNetworkId);
+    pid_t callingPid = OHOS::IPCSkeleton::GetCallingPid();
+    return LnnIpcStopTimeSync(pkgName, targetNetworkId, callingPid);
 }
 
 int32_t SoftBusServer::QosReport(int32_t channelId, int32_t chanType, int32_t appType, int32_t quality)
diff --git a/sdk/bus_center/ipc/mini/bus_center_server_proxy.c b/sdk/bus_center/ipc/mini/bus_center_server_proxy.c
index 5b499fcfe88e65afc013951f4bba94d720745028..a826682e50d4a323833e326716c03be7461c6667 100644
--- a/sdk/bus_center/ipc/mini/bus_center_server_proxy.c
+++ b/sdk/bus_center/ipc/mini/bus_center_server_proxy.c
@@ -87,7 +87,7 @@ int32_t ServerIpcStartTimeSync(const char *pkgName, const char *targetNetworkId,
 
 int32_t ServerIpcStopTimeSync(const char *pkgName, const char *targetNetworkId)
 {
-    return LnnIpcStopTimeSync(pkgName, targetNetworkId);
+    return LnnIpcStopTimeSync(pkgName, targetNetworkId, 0);
 }
 
 int32_t ServerIpcPublishLNN(const char *pkgName, const PublishInfo *info)