diff --git a/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/po/RolePO.java b/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/po/RolePO.java
index e56b39c52..953bdfe6c 100644
--- a/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/po/RolePO.java
+++ b/mhd-common/mhd-common-core/src/main/java/com/mhd/common/core/domain/po/RolePO.java
@@ -1,5 +1,6 @@
 package com.mhd.common.core.domain.po;
 
+import cn.hutool.core.util.ObjectUtil;
 import com.mhd.common.core.web.domain.BaseVOEntity;
 import io.swagger.annotations.ApiModelProperty;
 import lombok.Data;
@@ -46,6 +47,9 @@ public class RolePO extends BaseVOEntity implements Serializable {
 
     @Override
     public boolean equals(Object o) {
+        if (ObjectUtil.isNull(o)) {
+            return false;
+        }
         RolePO rolePO = (RolePO) o;
         return roleCode.equals(rolePO.getRoleCode());
     }