diff --git a/platformapi/jcqapi/jcqapi.go b/platformapi/jcqapi/jcqapi.go
index 6e2f424f..c5049fb5 100644
--- a/platformapi/jcqapi/jcqapi.go
+++ b/platformapi/jcqapi/jcqapi.go
@@ -68,12 +68,12 @@ func (a *API) signParam(params map[string]interface{}) (sig string) {
 func (a *API) AccessAPI(action string, url string, bizParams map[string]interface{}) (retVal map[string]interface{}, err error) {
 	params := make(map[string]interface{})
 	time := time.Now().UTC().Format(time.RFC3339)
-	bizParams["accessKey"] = a.accessKey
-	bizParams["dateTime"] = time
+	params["accessKey"] = a.accessKey
+	params["dateTime"] = time
 	params = utils.MergeMaps(params, bizParams)
+	signStr := a.signParam(params)
 	delete(params, "accessKey")
 	delete(params, "dateTime")
-	signStr := a.signParam(params)
 	err = platformapi.AccessPlatformAPIWithRetry(a.client,
 		func() *http.Request {
 			request, _ := http.NewRequest(http.MethodGet, utils.GenerateGetURL(url, action, params), nil)