diff --git a/src/main/java/com/kimgo/wepush/controller/SMSController.java b/src/main/java/com/kimgo/wepush/controller/SMSController.java
index 029f022..700e91d 100644
--- a/src/main/java/com/kimgo/wepush/controller/SMSController.java
+++ b/src/main/java/com/kimgo/wepush/controller/SMSController.java
@@ -25,12 +25,10 @@ public class SMSController {
         if(accessToken == null){
             return ServerResponseEntity.fail("accessToken cannot be empty.");
         }
-        if (smsInfo.isNullString()){
-            return ServerResponseEntity.fail("json body value error.");
-        }
         if (smsInfo == null || !smsInfo.validateFields()) {
             return ServerResponseEntity.fail("SMS info fields must not be blank.");
         }
+
         return smsService.getSMSInfo(accessToken,smsInfo);
     }
 }
\ No newline at end of file