diff --git a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/controller/UserProjectRelevancyController.java b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/controller/UserProjectRelevancyController.java
index aa647e4c..b4a8d1ae 100644
--- a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/controller/UserProjectRelevancyController.java
+++ b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/controller/UserProjectRelevancyController.java
@@ -125,15 +125,7 @@ public class UserProjectRelevancyController extends BaseController {
     @RepeatSubmit()
     @PostMapping("/add/project/list")
     public R<Boolean> addBatchByProjectList(@RequestBody ProjectBatchByProjectListReq req) {
-        Long userId = req.getUserId();
-        Long[] projectIdList = req.getProjectIdList();
-        List<UserProjectRelevancy> userProjectRelevancyList = Arrays.stream(projectIdList).map(projectId -> {
-            UserProjectRelevancy userProjectRelevancy = new UserProjectRelevancy();
-            userProjectRelevancy.setUserId(userId);
-            userProjectRelevancy.setProjectId(projectId);
-            return userProjectRelevancy;
-        }).toList();
-        boolean result = userProjectRelevancyService.saveBatch(userProjectRelevancyList);
+        Boolean result = userProjectRelevancyService.insertBatchByProjectList(req);
         return R.ok(result);
     }
 
diff --git a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/IUserProjectRelevancyService.java b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/IUserProjectRelevancyService.java
index 68faf699..dd2044a8 100644
--- a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/IUserProjectRelevancyService.java
+++ b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/IUserProjectRelevancyService.java
@@ -7,6 +7,7 @@ import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
 import org.dromara.project.domain.UserProjectRelevancy;
 import org.dromara.project.domain.bo.UserProjectRelevancyBo;
+import org.dromara.project.domain.req.project.ProjectBatchByProjectListReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyCreateReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyQueryReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyUpdateReq;
@@ -114,4 +115,12 @@ public interface IUserProjectRelevancyService extends IService<UserProjectReleva
      * @return 查询条件封装
      */
     QueryWrapper<UserProjectRelevancy> getQueryWrapper(UserProjectRelevancyQueryReq req);
+
+    /**
+     * 批量新增用户和项目关联
+     *
+     * @param req 新增参数
+     * @return 是否增加成功
+     */
+    Boolean insertBatchByProjectList(ProjectBatchByProjectListReq req);
 }
diff --git a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/impl/UserProjectRelevancyServiceImpl.java b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/impl/UserProjectRelevancyServiceImpl.java
index 45461a78..b0828e3b 100644
--- a/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/impl/UserProjectRelevancyServiceImpl.java
+++ b/RuoYi-Vue-Plus/ruoyi-modules/ruoyi-system/src/main/java/org/dromara/project/service/impl/UserProjectRelevancyServiceImpl.java
@@ -15,9 +15,11 @@ import org.dromara.common.core.utils.ObjectUtils;
 import org.dromara.common.core.utils.sql.SqlUtil;
 import org.dromara.common.mybatis.core.page.PageQuery;
 import org.dromara.common.mybatis.core.page.TableDataInfo;
+import org.dromara.common.satoken.utils.LoginHelper;
 import org.dromara.project.domain.Project;
 import org.dromara.project.domain.UserProjectRelevancy;
 import org.dromara.project.domain.bo.UserProjectRelevancyBo;
+import org.dromara.project.domain.req.project.ProjectBatchByProjectListReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyCreateReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyQueryReq;
 import org.dromara.project.domain.req.userprojectrelevancy.UserProjectRelevancyUpdateReq;
@@ -28,7 +30,9 @@ import org.dromara.project.service.IProjectService;
 import org.dromara.project.service.IUserProjectRelevancyService;
 import org.springframework.beans.BeanUtils;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
+import java.util.Arrays;
 import java.util.Collection;
 import java.util.List;
 import java.util.Objects;
@@ -148,6 +152,16 @@ public class UserProjectRelevancyServiceImpl extends ServiceImpl<UserProjectRele
         BeanUtils.copyProperties(req, userProjectRelevancy);
         // 数据校验
         validEntityBeforeSave(userProjectRelevancy);
+        // 判断对应项目是否存在
+        if (projectService.getById(userProjectRelevancy.getProjectId()) == null) {
+            throw new ServiceException("项目不存在", HttpStatus.NOT_FOUND);
+        }
+        // 判断对应的用户与项目关联是否存在
+        if (this.getOne(new LambdaQueryWrapper<UserProjectRelevancy>()
+            .eq(UserProjectRelevancy::getUserId, userProjectRelevancy.getUserId())
+            .eq(UserProjectRelevancy::getProjectId, userProjectRelevancy.getProjectId())) != null) {
+            throw new ServiceException("用户和项目关联已存在", HttpStatus.CONFLICT);
+        }
         // 写入数据库
         boolean save = this.save(userProjectRelevancy);
         if (!save) {
@@ -220,7 +234,10 @@ public class UserProjectRelevancyServiceImpl extends ServiceImpl<UserProjectRele
     public List<LoginUserProjectRelevancyResp> queryListByUserId(Long userId) {
         // 添加查询条件，根据当前用户，获取数据
         LambdaQueryWrapper<UserProjectRelevancy> queryWrapper = Wrappers.lambdaQuery();
-        queryWrapper.eq(UserProjectRelevancy::getUserId, userId);
+        // 如果是超级管理员查看所有
+        if (!LoginHelper.isSuperAdmin()) {
+            queryWrapper.eq(UserProjectRelevancy::getUserId, userId);
+        }
         // 查询数据库，获取数据
         List<UserProjectRelevancy> list = this.list(queryWrapper);
         // 获取封装
@@ -249,8 +266,11 @@ public class UserProjectRelevancyServiceImpl extends ServiceImpl<UserProjectRele
     public Page<UserProjectRelevancyVo> queryPageByUserId(Long userId, UserProjectRelevancyQueryReq req) {
         long current = req.getCurrent();
         long size = req.getPageSize();
-        // 添加查询条件
-        req.setUserId(userId);
+        // 如果是超级管理员查看所有
+        if (!LoginHelper.isSuperAdmin()) {
+            // 添加查询条件
+            req.setUserId(userId);
+        }
         QueryWrapper<UserProjectRelevancy> queryWrapper = this.getQueryWrapper(req);
         // 查询数据库
         Page<UserProjectRelevancy> result = this.page(new Page<>(current, size), queryWrapper);
@@ -280,4 +300,41 @@ public class UserProjectRelevancyServiceImpl extends ServiceImpl<UserProjectRele
             underlineSortField);
         return queryWrapper;
     }
+
+    /**
+     * 批量新增用户和项目关联
+     *
+     * @param req 新增参数
+     * @return 是否增加成功
+     */
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Boolean insertBatchByProjectList(ProjectBatchByProjectListReq req) {
+        Long userId = req.getUserId();
+        Long[] projectIdList = req.getProjectIdList();
+        long count = projectService.count(new QueryWrapper<Project>().in("id", (Object[]) projectIdList));
+        if (count < projectIdList.length) {
+            throw new ServiceException("项目ID列表错误，一个或多个项目不存在", HttpStatus.NOT_FOUND);
+        }
+        List<UserProjectRelevancy> userProjectRelevancyList = Arrays.stream(projectIdList).map(projectId -> {
+            UserProjectRelevancy userProjectRelevancy = new UserProjectRelevancy();
+            userProjectRelevancy.setUserId(userId);
+            userProjectRelevancy.setProjectId(projectId);
+            // 查询对应用户与项目关联信息是否存在
+            QueryWrapper<UserProjectRelevancy> queryWrapper = new QueryWrapper<>();
+            queryWrapper.eq("user_id", userId);
+            queryWrapper.eq("project_id", projectId);
+            // 如果存在则不保存
+            UserProjectRelevancy one = this.getOne(queryWrapper);
+            if (one != null) {
+                return null;
+            }
+            return userProjectRelevancy;
+        }).filter(Objects::nonNull).toList();
+        if (userProjectRelevancyList.isEmpty()) {
+            throw new ServiceException("对应用户与项目关系均已存在，无需重复添加", HttpStatus.BAD_REQUEST);
+        }
+        // 当用户与项目关系存在时修改，不存在则保存
+        return this.saveOrUpdateBatch(userProjectRelevancyList);
+    }
 }
diff --git a/RuoYi-Vue-Plus/script/sql/xinnengyuan.sql b/RuoYi-Vue-Plus/script/sql/xinnengyuan.sql
index 7b3aaf54..090a6651 100644
--- a/RuoYi-Vue-Plus/script/sql/xinnengyuan.sql
+++ b/RuoYi-Vue-Plus/script/sql/xinnengyuan.sql
@@ -57,6 +57,8 @@ CREATE TABLE `user_project_relevancy`
   COLLATE = utf8mb4_general_ci COMMENT = '系统用户与项目关联'
   ROW_FORMAT = DYNAMIC;
 
+
+
 -- 菜单 SQL
 insert into sys_menu (menu_id, menu_name, parent_id, order_num, path, component, is_frame, is_cache, menu_type, visible,
                       status, perms, icon, create_dept, create_by, create_time, update_by, update_time, remark)