diff --git a/include/appspawn_message.h b/include/appspawn_message.h
index 6edd3b38a57e076317c188e7ec0211fd1a53e3f9..8fb547fea66c7157b3378d9c3612d604a10efec3 100755
--- a/include/appspawn_message.h
+++ b/include/appspawn_message.h
@@ -24,7 +24,7 @@ extern "C" {
 typedef struct {
     char* bundleName;
     char* sharedLibPaths;
-    unsigned long long identityID;
+    char* identityID;
     int uID;
     int gID;
 } MessageSt;
diff --git a/src/appspawn_message.c b/src/appspawn_message.c
index f0741f47e7526d18722c42229bd957f09b54e834..d06c980370dfe93f69ec5a9c21cb1c5640a2dd27 100755
--- a/src/appspawn_message.c
+++ b/src/appspawn_message.c
@@ -32,6 +32,8 @@ static const size_t MAX_BUNDLE_NAME_LEN = 127;
 static const size_t MIN_BUNDLE_NAME_LEN = 7;
 static const size_t MAX_SHARED_LIB_PATH_LEN = 2048;
 static const size_t MIN_SHARED_LIB_PATH_LEN = 0;
+static const size_t MAX_IDENTITY_ID_LEN = 24;
+static const size_t MIN_IDENTITY_ID_LEN = 1;
 
 void FreeMessageSt(MessageSt* targetSt)
 {
@@ -46,7 +48,11 @@ void FreeMessageSt(MessageSt* targetSt)
             targetSt->sharedLibPaths = NULL;
         }
 
-        targetSt->identityID = 0;
+        if (targetSt->identityID != NULL) {
+            free(targetSt->identityID);
+            targetSt->identityID = NULL;
+        }
+
         targetSt->uID = -1;
         targetSt->gID = -1;
     }
@@ -120,16 +126,20 @@ int SplitMessage(const char* msg, unsigned int msgLen, MessageSt* msgSt)
     }
 
     cJSON* identityIDItem = cJSON_GetObjectItem(rootJ, "identityID");
+    ret = ReadStringItem(identityIDItem, &(msgSt->identityID), MAX_IDENTITY_ID_LEN, MIN_IDENTITY_ID_LEN);
+    if (ret != EC_SUCCESS) {
+        FreeMessageSt(msgSt);
+        cJSON_Delete(rootJ);
+        return ret;
+    }
+
     cJSON* uIDItem = cJSON_GetObjectItem(rootJ, "uID");
     cJSON* gIDItem = cJSON_GetObjectItem(rootJ, "gID");
-
-    msgSt->identityID = (unsigned long long)ReadNumberItem(identityIDItem);
     msgSt->uID = (int)ReadNumberItem(uIDItem);
     msgSt->gID = (int)ReadNumberItem(gIDItem);
     cJSON_Delete(rootJ);
 
-    if (msgSt->identityID == 0 || msgSt->uID <= 0 || msgSt->gID <= 0 ||
-        msgSt->identityID == ULLONG_MAX || msgSt->uID == INT_MAX || msgSt->gID == INT_MAX) {
+    if (msgSt->uID <= 0 || msgSt->gID <= 0 || msgSt->uID == INT_MAX || msgSt->gID == INT_MAX) {
         FreeMessageSt(msgSt);
         return EC_PROTOCOL;
     }
diff --git a/src/appspawn_process.c b/src/appspawn_process.c
index 902837f159e88181a8c2c76eab939a4c5adc542b..31f0312c1467ea409b3976149513ec44d986364a 100755
--- a/src/appspawn_process.c
+++ b/src/appspawn_process.c
@@ -126,9 +126,9 @@ pid_t CreateProcess(const MessageSt* msgSt)
         return -1;
     }
 
-    if (sprintf_s(identityIDStr, MAX_IDENTITY_ID_LENGTH, "%llu", msgSt->identityID) <= 0 ||
+    if (sprintf_s(identityIDStr, MAX_IDENTITY_ID_LENGTH, "%s", msgSt->identityID) <= 0 ||
         sprintf_s(processNameStr, MAX_PROCESS_NAME_LENGTH, "%s", msgSt->bundleName) <= 0) {
-        HILOG_ERROR(HILOG_MODULE_HIVIEW, "[appspawn] sprintf_s failed. id %{public}llu, name %{public}s.",\
+        HILOG_ERROR(HILOG_MODULE_HIVIEW, "[appspawn] sprintf_s failed. id %{public}s, name %{public}s.",\
             msgSt->identityID, msgSt->bundleName);
         return -1;
     }
diff --git a/src/appspawn_service.c b/src/appspawn_service.c
index 70dd9a289187d7a152aeafbee82e47ed7fbd6f66..3415d9ab2489b70764ffdd9e94bcf9bd25dc335a 100755
--- a/src/appspawn_service.c
+++ b/src/appspawn_service.c
@@ -119,7 +119,7 @@ static int Invoke(IServerProxy* iProxy, int funcId, void* origin, IpcIo* req, Ip
         return EC_FAILURE;
     }
 
-    HILOG_INFO(HILOG_MODULE_HIVIEW, "[appspawn] msg<%{public}s,%{public}s,%{public}llu,%{public}d,%{public}d>",\
+    HILOG_INFO(HILOG_MODULE_HIVIEW, "[appspawn] msg<%{public}s,%{public}s,%{public}s,%{public}d,%{public}d>",\
         msgSt.bundleName, msgSt.sharedLibPaths, msgSt.identityID, msgSt.uID, msgSt.gID);
 
     pid_t newPid = CreateProcess(&msgSt);