diff --git a/src/main/java/neatlogic/framework/form/dto/FormAttributeVo.java b/src/main/java/neatlogic/framework/form/dto/FormAttributeVo.java
index a6be7a28af684481dd94eb360ea746c632000915..1f8ef93725c09a5e2c90a7ca452fccf1a1df5e7a 100644
--- a/src/main/java/neatlogic/framework/form/dto/FormAttributeVo.java
+++ b/src/main/java/neatlogic/framework/form/dto/FormAttributeVo.java
@@ -27,7 +27,10 @@ import neatlogic.framework.restful.annotation.EntityField;
 import org.apache.commons.collections4.CollectionUtils;
 
 import java.io.Serializable;
-import java.util.*;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
 
 public class FormAttributeVo implements Serializable {
     private static final long serialVersionUID = 8282018124626035430L;
@@ -166,6 +169,9 @@ public class FormAttributeVo implements Serializable {
         if (config == null && configStr != null) {
             config = JSONObject.parseObject(configStr);
         }
+        if (config == null) {
+            config = new JSONObject();
+        }
         return config;
     }