diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysUserMenuConfigController.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysUserMenuConfigController.java
new file mode 100644
index 0000000..eec291e
--- /dev/null
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/system/SysUserMenuConfigController.java
@@ -0,0 +1,52 @@
+package com.ruoyi.web.controller.system;
+
+import com.ruoyi.common.core.controller.BaseController;
+import com.ruoyi.common.core.domain.AjaxResult;
+import com.ruoyi.system.domain.SysUserMenuConfig;
+import com.ruoyi.system.service.ISysUserMenuConfigService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.*;
+
+import java.util.Map;
+
+/**
+ * 用户左侧菜单配置（当前登录用户自己的配置）
+ *
+ * @author ruoyi
+ */
+@RestController
+@RequestMapping("/system/user/menuConfig")
+public class SysUserMenuConfigController extends BaseController {
+
+    @Autowired
+    private ISysUserMenuConfigService menuConfigService;
+
+    /**
+     * 获取当前用户的左侧菜单配置
+     */
+    @GetMapping
+    public AjaxResult getMyConfig() {
+        Long userId = getUserId();
+        SysUserMenuConfig config = menuConfigService.selectByUserId(userId);
+        if (config == null) {
+            return success(null);
+        }
+        return success(config);
+    }
+
+    /**
+     * 保存当前用户的左侧菜单配置
+     * 请求体: { "menuItems": "[{...}]", "position": "left" }
+     */
+    @PutMapping
+    public AjaxResult saveMyConfig(@RequestBody Map<String, Object> body) {
+        Long userId = getUserId();
+        String menuItems = body != null && body.get("menuItems") != null ? body.get("menuItems").toString() : null;
+        String position = body != null && body.get("position") != null ? body.get("position").toString() : "left";
+        if (menuItems == null) {
+            return error("菜单项不能为空");
+        }
+        int rows = menuConfigService.saveConfig(userId, menuItems, position, getUsername());
+        return toAjax(rows);
+    }
+}
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/domain/SysUserMenuConfig.java b/ruoyi-system/src/main/java/com/ruoyi/system/domain/SysUserMenuConfig.java
new file mode 100644
index 0000000..6b08c56
--- /dev/null
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/domain/SysUserMenuConfig.java
@@ -0,0 +1,63 @@
+package com.ruoyi.system.domain;
+
+import javax.validation.constraints.Size;
+import com.ruoyi.common.annotation.Excel;
+import com.ruoyi.common.core.domain.BaseEntity;
+
+/**
+ * 用户左侧菜单配置对象 sys_user_menu_config
+ *
+ * @author ruoyi
+ */
+public class SysUserMenuConfig extends BaseEntity {
+
+    private static final long serialVersionUID = 1L;
+
+    /** 配置主键 */
+    private Long configId;
+
+    /** 用户ID */
+    @Excel(name = "用户ID")
+    private Long userId;
+
+    /** 菜单项JSON数组 */
+    @Excel(name = "菜单项")
+    private String menuItems;
+
+    /** 菜单位置 left/top/bottom */
+    @Excel(name = "菜单位置")
+    @Size(max = 20)
+    private String position;
+
+    public Long getConfigId() {
+        return configId;
+    }
+
+    public void setConfigId(Long configId) {
+        this.configId = configId;
+    }
+
+    public Long getUserId() {
+        return userId;
+    }
+
+    public void setUserId(Long userId) {
+        this.userId = userId;
+    }
+
+    public String getMenuItems() {
+        return menuItems;
+    }
+
+    public void setMenuItems(String menuItems) {
+        this.menuItems = menuItems;
+    }
+
+    public String getPosition() {
+        return position;
+    }
+
+    public void setPosition(String position) {
+        this.position = position;
+    }
+}
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/mapper/SysUserMenuConfigMapper.java b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/SysUserMenuConfigMapper.java
new file mode 100644
index 0000000..1b5c771
--- /dev/null
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/mapper/SysUserMenuConfigMapper.java
@@ -0,0 +1,35 @@
+package com.ruoyi.system.mapper;
+
+import com.ruoyi.system.domain.SysUserMenuConfig;
+
+/**
+ * 用户左侧菜单配置 数据层
+ *
+ * @author ruoyi
+ */
+public interface SysUserMenuConfigMapper {
+
+    /**
+     * 根据用户ID查询配置
+     *
+     * @param userId 用户ID
+     * @return 配置信息
+     */
+    SysUserMenuConfig selectByUserId(Long userId);
+
+    /**
+     * 新增配置
+     *
+     * @param config 配置信息
+     * @return 结果
+     */
+    int insertConfig(SysUserMenuConfig config);
+
+    /**
+     * 更新配置
+     *
+     * @param config 配置信息
+     * @return 结果
+     */
+    int updateConfig(SysUserMenuConfig config);
+}
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserMenuConfigService.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserMenuConfigService.java
new file mode 100644
index 0000000..d3ccd59
--- /dev/null
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/ISysUserMenuConfigService.java
@@ -0,0 +1,30 @@
+package com.ruoyi.system.service;
+
+import com.ruoyi.system.domain.SysUserMenuConfig;
+
+/**
+ * 用户左侧菜单配置 服务层
+ *
+ * @author ruoyi
+ */
+public interface ISysUserMenuConfigService {
+
+    /**
+     * 根据当前登录用户ID查询配置
+     *
+     * @param userId 用户ID
+     * @return 配置信息，无则返回 null
+     */
+    SysUserMenuConfig selectByUserId(Long userId);
+
+    /**
+     * 保存当前用户的菜单配置（有则更新，无则新增）
+     *
+     * @param userId    用户ID
+     * @param menuItems 菜单项JSON字符串
+     * @param position  菜单位置
+     * @param operator  操作人（createBy/updateBy）
+     * @return 结果
+     */
+    int saveConfig(Long userId, String menuItems, String position, String operator);
+}
diff --git a/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserMenuConfigServiceImpl.java b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserMenuConfigServiceImpl.java
new file mode 100644
index 0000000..367a20c
--- /dev/null
+++ b/ruoyi-system/src/main/java/com/ruoyi/system/service/impl/SysUserMenuConfigServiceImpl.java
@@ -0,0 +1,55 @@
+package com.ruoyi.system.service.impl;
+
+import com.ruoyi.common.utils.StringUtils;
+import com.ruoyi.system.domain.SysUserMenuConfig;
+import com.ruoyi.system.mapper.SysUserMenuConfigMapper;
+import com.ruoyi.system.service.ISysUserMenuConfigService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Service;
+
+/**
+ * 用户左侧菜单配置 服务层实现
+ *
+ * @author ruoyi
+ */
+@Service
+public class SysUserMenuConfigServiceImpl implements ISysUserMenuConfigService {
+
+    @Autowired
+    private SysUserMenuConfigMapper menuConfigMapper;
+
+    @Override
+    public SysUserMenuConfig selectByUserId(Long userId) {
+        if (userId == null) {
+            return null;
+        }
+        return menuConfigMapper.selectByUserId(userId);
+    }
+
+    @Override
+    public int saveConfig(Long userId, String menuItems, String position, String operator) {
+        if (userId == null) {
+            return 0;
+        }
+        SysUserMenuConfig existing = menuConfigMapper.selectByUserId(userId);
+        if (existing != null) {
+            existing.setMenuItems(menuItems);
+            if (StringUtils.isNotEmpty(position)) {
+                existing.setPosition(position);
+            }
+            if (StringUtils.isNotEmpty(operator)) {
+                existing.setUpdateBy(operator);
+            }
+            return menuConfigMapper.updateConfig(existing);
+        } else {
+            SysUserMenuConfig config = new SysUserMenuConfig();
+            config.setUserId(userId);
+            config.setMenuItems(menuItems);
+            config.setPosition(StringUtils.isEmpty(position) ? "left" : position);
+            if (StringUtils.isNotEmpty(operator)) {
+                config.setCreateBy(operator);
+            }
+            return menuConfigMapper.insertConfig(config);
+        }
+    }
+}
diff --git a/ruoyi-system/src/main/resources/mapper/system/SysUserMenuConfigMapper.xml b/ruoyi-system/src/main/resources/mapper/system/SysUserMenuConfigMapper.xml
new file mode 100644
index 0000000..b03f615
--- /dev/null
+++ b/ruoyi-system/src/main/resources/mapper/system/SysUserMenuConfigMapper.xml
@@ -0,0 +1,58 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE mapper
+PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
+"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
+<mapper namespace="com.ruoyi.system.mapper.SysUserMenuConfigMapper">
+
+    <resultMap type="com.ruoyi.system.domain.SysUserMenuConfig" id="SysUserMenuConfigResult">
+        <id     property="configId"    column="config_id"    />
+        <result property="userId"      column="user_id"      />
+        <result property="menuItems"   column="menu_items"   />
+        <result property="position"   column="position"     />
+        <result property="createBy"   column="create_by"     />
+        <result property="createTime" column="create_time"   />
+        <result property="updateBy"   column="update_by"     />
+        <result property="updateTime" column="update_time"   />
+        <result property="remark"     column="remark"       />
+    </resultMap>
+
+    <sql id="selectVo">
+        select config_id, user_id, menu_items, position, create_by, create_time, update_by, update_time, remark
+        from sys_user_menu_config
+    </sql>
+
+    <select id="selectByUserId" parameterType="Long" resultMap="SysUserMenuConfigResult">
+        <include refid="selectVo"/>
+        where user_id = #{userId} limit 1
+    </select>
+
+    <insert id="insertConfig" parameterType="com.ruoyi.system.domain.SysUserMenuConfig">
+        insert into sys_user_menu_config (
+            user_id,
+            menu_items,
+            position,
+            <if test="createBy != null and createBy != ''">create_by,</if>
+            <if test="remark != null and remark != ''">remark,</if>
+            create_time
+        ) values (
+            #{userId},
+            #{menuItems},
+            #{position},
+            <if test="createBy != null and createBy != ''">#{createBy},</if>
+            <if test="remark != null and remark != ''">#{remark},</if>
+            sysdate()
+        )
+    </insert>
+
+    <update id="updateConfig" parameterType="com.ruoyi.system.domain.SysUserMenuConfig">
+        update sys_user_menu_config
+        <set>
+            <if test="menuItems != null">menu_items = #{menuItems},</if>
+            <if test="position != null and position != ''">position = #{position},</if>
+            <if test="updateBy != null and updateBy != ''">update_by = #{updateBy},</if>
+            <if test="remark != null">remark = #{remark},</if>
+            update_time = sysdate()
+        </set>
+        where user_id = #{userId}
+    </update>
+</mapper>
diff --git a/ruoyi-ui/src/api/system/userMenuConfig.js b/ruoyi-ui/src/api/system/userMenuConfig.js
new file mode 100644
index 0000000..a87faba
--- /dev/null
+++ b/ruoyi-ui/src/api/system/userMenuConfig.js
@@ -0,0 +1,23 @@
+import request from '@/utils/request'
+
+/**
+ * 获取当前用户的左侧菜单配置
+ */
+export function getMenuConfig() {
+  return request({
+    url: '/system/user/menuConfig',
+    method: 'get'
+  })
+}
+
+/**
+ * 保存当前用户的左侧菜单配置
+ * @param {Object} data - { menuItems: string (JSON), position: string }
+ */
+export function saveMenuConfig(data) {
+  return request({
+    url: '/system/user/menuConfig',
+    method: 'put',
+    data: data
+  })
+}