diff --git a/services/devicemanagerservice/src/authdemo/hichain_adapter.cpp b/services/devicemanagerservice/src/authdemo/hichain_adapter.cpp
index ebf5e1dbaa0a26ded86b031cfad35f5e3ab66352..435e496055326f8b5994c42d4aead4f7e4ff7710 100644
--- a/services/devicemanagerservice/src/authdemo/hichain_adapter.cpp
+++ b/services/devicemanagerservice/src/authdemo/hichain_adapter.cpp
@@ -18,6 +18,7 @@
 #include <cstdlib>
 #include <ctime>
 #include <functional>
+#include <securec.h>
 
 #include "parameter.h"
 
@@ -268,7 +269,14 @@ char* HichainAdapter::OnBindRequest(int64_t requestId, int operationCode, const
     char localDeviceId[DEVICE_UUID_LENGTH] = {0};
     GetDevUdid(localDeviceId, DEVICE_UUID_LENGTH);
     bindRequestJsonObj_[FIELD_DEVICE_ID] = localDeviceId;
-    return (char*) bindRequestJsonObj_.dump().c_str();
+	const char * ret = (const char*) bindRequestJsonObj_.dump().c_str();
+	int strLen = strlen(ret)+1;
+	char * retJsonStr = (char *)malloc(strLen);
+    if (memcpy_s(retJsonStr, strLen, bindRequestJsonObj_.dump().c_str(), strLen) != 0) {
+        HILOGE("HichainAdapter::OnBindRequest  memcpy failed.");
+        return nullptr;
+    }
+    return retJsonStr;
 }
 
 void HichainAdapter::OnBindSuccess(int64_t requestId, const char* returnData)
@@ -373,7 +381,9 @@ void HichainAuthCallBack::onError(int64_t requestId, int operationCode, int erro
 char* HichainAuthCallBack::onBindRequest(int64_t requestId, int operationCode, const char *reqParams)
 {
     HILOGI("HichainAuthCallBack::onBindRequest reqId:%{public}lld, operation:%{public}d.", requestId, operationCode);
-    return HichainAdapter::GetInstance().OnBindRequest(requestId, operationCode, reqParams);
+	char * ret = HichainAdapter::GetInstance().OnBindRequest(requestId, operationCode, reqParams);
+	HILOGI("HichainAuthCallBack::onBindRequest %{public}s", ret);
+    return ret;
 }
 }
 }