diff --git a/njcn-common/src/main/java/com/njcn/common/pojo/constant/PatternRegex.java b/njcn-common/src/main/java/com/njcn/common/pojo/constant/PatternRegex.java
index 378ed52..002869f 100644
--- a/njcn-common/src/main/java/com/njcn/common/pojo/constant/PatternRegex.java
+++ b/njcn-common/src/main/java/com/njcn/common/pojo/constant/PatternRegex.java
@@ -201,6 +201,11 @@ public interface PatternRegex {
      */
     String DES200_REGEX = "^.{0,200}$";
 
+    /**
+     * 描述400
+     */
+    String DES400_REGEX = "^.{0,400}$";
+
     /**
      * 描述500
      */