diff --git a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/SmsConfigFacade.java b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/SmsConfigFacade.java
index f119546..f5a0979 100644
--- a/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/SmsConfigFacade.java
+++ b/platform-operate-api/src/main/java/com/lyms/platform/operate/web/facade/SmsConfigFacade.java
@@ -80,7 +80,7 @@ public class SmsConfigFacade {
 		model.setGuideTime(JsonUtil.array2JsonString(request.getGuideTime()));
 		model.setSmsService(JsonUtil.array2JsonString(request.getSmsService()));
 		model.setAreaPrefix(request.getAreaPrefix());
-		model.setIsCharge(JsonUtil.obj2Str(request.getIsCharge()));
+		model.setIsCharge(request.getIsCharge() == null ? "" : JsonUtil.obj2Str(request.getIsCharge()));
 
 		return model;
 	}