diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/api/sys_user/SysUserFeign.java b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/api/sys_user/SysUserFeign.java
index c2be991..8da7413 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/api/sys_user/SysUserFeign.java
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/api/sys_user/SysUserFeign.java
@@ -20,7 +20,6 @@ public interface SysUserFeign {
     @PostMapping("/register")
     ResultBean register(@RequestBody SysUserDto dto);
 
-
     @ApiOperation(value = "登录")
     @RequestMapping("/login")
     ResultBean login(@RequestBody SysUserLoginQuery query);
@@ -32,4 +31,8 @@ public interface SysUserFeign {
     @ApiOperation(value = "查询个人信息")
     @RequestMapping("/selectUserInfo/{sid}")
     ResultBean selectUserInfo(@PathVariable String sid);
+
+    @ApiOperation(value = "修改账号个人信息")
+    @RequestMapping("/alterInfoUser")
+    ResultBean alterInfoUser(@RequestBody SysUser sysUser);
 }
diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.java b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.java
index e6c42bd..ba81f1e 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.java
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.java
@@ -28,4 +28,6 @@ public interface SysInfoMapper extends BaseMapper<SysInfo> {
     SysInfo selectBySid(@Param("sid") String sid);
 
     void deleteInfoBySid(@Param("sid") String sid);
+
+    SysInfo selectInfoByUserSid(@Param("userSid") String userSid);
 }
diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.xml b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.xml
index d62d7ef..07372f9 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.xml
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoMapper.xml
@@ -31,4 +31,8 @@
     <delete id="deleteInfoBySid">
         delete from sys_info where sid = #{sid}
     </delete>
+
+    <select id="selectInfoByUserSid" resultType="com.yxt.demo.system.api.sys_info.SysInfo">
+        select * from sys_info where userSid = #{userSid}
+    </select>
 </mapper>
\ No newline at end of file
diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoService.java b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoService.java
index 185bf94..709f8ab 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoService.java
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_info/SysInfoService.java
@@ -85,7 +85,10 @@ public class SysInfoService extends MybatisBaseService<SysInfoMapper, SysInfo> {
         }else {
             return rb.setMsg("学号格式不正确！！！");
         }
+    }
 
-
+    public SysInfo selectInfoByUserSid(String userSid){
+        SysInfo sysInfo = sysInfoMapper.selectInfoByUserSid(userSid);
+        return sysInfo;
     }
 }
diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserRest.java b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserRest.java
index ea2bcc7..357559b 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserRest.java
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserRest.java
@@ -42,4 +42,9 @@ public class SysUserRest implements SysUserFeign {
     public ResultBean selectUserInfo(String sid) {
         return sysUserService.selectUserInfo(sid);
     }
+
+    @Override
+    public ResultBean alterInfoUser(SysUser sysUser) {
+        return sysUserService.alterInfoUser(sysUser);
+    }
 }
diff --git a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserService.java b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserService.java
index 84904e1..7b27c07 100644
--- a/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserService.java
+++ b/demo-system/demo-system-biz/src/main/java/com/yxt/demo/system/biz/sys_user/SysUserService.java
@@ -106,4 +106,22 @@ public class SysUserService extends MybatisBaseService<SysUserMapper, SysUser> {
         SysUser sysUser = sysUserMapper.selectUserInfo(sid);
         return rb.success().setData(sysUser);
     }
+
+    public ResultBean alterInfoUser(SysUser sysUser) {
+        ResultBean rb = ResultBean.fireFail();
+        int i = sysUserMapper.updateById(sysUser);
+        if (i == 0){
+            return rb.setMsg("修改失败");
+        }else {
+            SysInfo sysInfo1 = sysInfoService.selectInfoByUserSid(sysUser.getSid());
+            sysInfo1.setCalss(sysUser.getCalss());
+            sysInfo1.setSpeciality(sysUser.getSpeciality());
+            sysInfo1.setDepartment(sysUser.getDepartment());
+            sysInfo1.setSex(sysUser.getSex());
+            sysInfo1.setStudyYear(sysUser.getStudyYear());
+            sysInfo1.setName(sysUser.getName());
+            sysInfoService.alterInfo(sysInfo1);
+            return rb.success();
+        }
+    }
 }