diff --git a/plusone-basic/plusone-basic-common/src/main/java/xyz/zhouxy/plusone/constant/ErrorCodeConsts.java b/plusone-basic/plusone-basic-common/src/main/java/xyz/zhouxy/plusone/constant/ErrorCodeConsts.java
index 2c38bd4..569a78f 100644
--- a/plusone-basic/plusone-basic-common/src/main/java/xyz/zhouxy/plusone/constant/ErrorCodeConsts.java
+++ b/plusone-basic/plusone-basic-common/src/main/java/xyz/zhouxy/plusone/constant/ErrorCodeConsts.java
@@ -2,6 +2,8 @@ package xyz.zhouxy.plusone.constant;
 
 public class ErrorCodeConsts {
     public static final int DEFAULT_ERROR_CODE = 9999999;
+    public static final int DEFAULT_SYS_ERROR_CODE = 5000000;
+    public static final int DEFAULT_BIZ_ERROR_CODE = 4000000;
 
     private ErrorCodeConsts() {
         throw new IllegalStateException("Utility class");