diff --git a/platformapi/yinbaoapi/yinbaoapi.go b/platformapi/yinbaoapi/yinbaoapi.go
index 4208b9f5..ea622323 100644
--- a/platformapi/yinbaoapi/yinbaoapi.go
+++ b/platformapi/yinbaoapi/yinbaoapi.go
@@ -93,7 +93,7 @@ func (a *API) AccessAPI(action string, bizParams map[string]interface{}) (retVal
 					for _, v := range jsonResult1["messages"].([]interface{}) {
 						errMsg += v.(string)
 					}
-					err = utils.NewErrorCode(errMsg, jsonResult1["errorCode"].(string))
+					err = utils.NewErrorCode(errMsg, utils.Interface2String(jsonResult1["errorCode"]))
 					baseapi.SugarLogger.Debugf("yinbao AccessAPI failed, jsonResult1:%s", utils.Format4Output(jsonResult1, true))
 				}
 				retVal = jsonResult1