diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/controller/ProjectGroupController.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/controller/ProjectGroupController.java
new file mode 100644
index 0000000..2d78481
--- /dev/null
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/controller/ProjectGroupController.java
@@ -0,0 +1,35 @@
+package cn.edu.hfut.rmdjzz.projectmanagement.controller;
+
+import cn.edu.hfut.rmdjzz.projectmanagement.exception.BadRequestException;
+import cn.edu.hfut.rmdjzz.projectmanagement.service.IProjectGroupService;
+import cn.edu.hfut.rmdjzz.projectmanagement.utils.http.ResponseList;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.PathVariable;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.List;
+
+/**
+ * @author 史鹏辉
+ * @since 2022/7/5 9:32
+ */
+
+@RestController
+@RequestMapping("/project/{projectId}/group")
+public class ProjectGroupController {
+    @Autowired
+    private IProjectGroupService projectGroupService;
+
+    @GetMapping
+    public ResponseList<Integer> getGroupNumber(@PathVariable Integer projectId) {
+        List<Integer> res = null;
+        try {
+            res = projectGroupService.findAllProjectNumber(projectId);
+        } catch (BadRequestException e) {
+            throw new RuntimeException(e);
+        }
+        return ResponseList.ofSuccess("查询成功", res);
+    }
+}
diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/mapper/ProjectGroupMapper.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/mapper/ProjectGroupMapper.java
index ac8daff..beb4168 100644
--- a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/mapper/ProjectGroupMapper.java
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/mapper/ProjectGroupMapper.java
@@ -1,12 +1,15 @@
 package cn.edu.hfut.rmdjzz.projectmanagement.mapper;
 
 import cn.edu.hfut.rmdjzz.projectmanagement.entity.ProjectGroup;
+import cn.edu.hfut.rmdjzz.projectmanagement.entity.ProjectType;
+import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
 import com.baomidou.mybatisplus.core.mapper.BaseMapper;
 
+import java.util.List;
+
 /**
  * @author 张韬
  * created at 2022/6/30 21:34
  */
 public interface ProjectGroupMapper extends BaseMapper<ProjectGroup> {
-
 }
diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/IProjectGroupService.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/IProjectGroupService.java
index 225671d..3f63b5c 100644
--- a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/IProjectGroupService.java
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/IProjectGroupService.java
@@ -1,8 +1,11 @@
 package cn.edu.hfut.rmdjzz.projectmanagement.service;
 
 import cn.edu.hfut.rmdjzz.projectmanagement.entity.ProjectGroup;
+import cn.edu.hfut.rmdjzz.projectmanagement.exception.BadRequestException;
 import com.baomidou.mybatisplus.extension.service.IService;
 
+import java.util.List;
+
 /**
  * @author 张韬
  * created at 2022/6/30 21:36
@@ -14,4 +17,6 @@ public interface IProjectGroupService extends IService<ProjectGroup> {
      * @return 如果不存在就返回0，否则返回AccessLevel
      */
     Integer getUserLevelInGroup(String token, Integer projectId);
+
+    List<Integer> findAllProjectNumber(Integer projectId) throws BadRequestException;
 }
\ No newline at end of file
diff --git a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
index 3fd794b..a3d1850 100644
--- a/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
+++ b/src/main/java/cn/edu/hfut/rmdjzz/projectmanagement/service/impl/ProjectGroupServiceImpl.java
@@ -1,6 +1,8 @@
 package cn.edu.hfut.rmdjzz.projectmanagement.service.impl;
 
 import cn.edu.hfut.rmdjzz.projectmanagement.entity.ProjectGroup;
+import cn.edu.hfut.rmdjzz.projectmanagement.exception.BadRequestException;
+import cn.edu.hfut.rmdjzz.projectmanagement.exception.TokenException;
 import cn.edu.hfut.rmdjzz.projectmanagement.mapper.ProjectGroupMapper;
 import cn.edu.hfut.rmdjzz.projectmanagement.service.IProjectGroupService;
 import cn.edu.hfut.rmdjzz.projectmanagement.utils.TokenUtils;
@@ -8,6 +10,9 @@ import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import org.springframework.stereotype.Service;
 
+import java.util.ArrayList;
+import java.util.List;
+
 /**
  * @author 张韬
  * created at 2022/6/30 21:38
@@ -41,4 +46,16 @@ public class ProjectGroupServiceImpl extends ServiceImpl<ProjectGroupMapper, Pro
             return 0;
         }
     }
+
+    @Override
+    public List<Integer> findAllProjectNumber(Integer projectId) throws BadRequestException {
+        List<Integer> res= new ArrayList<>();
+        List<ProjectGroup> targetProject = baseMapper.selectList(Wrappers.<ProjectGroup>lambdaQuery().eq(ProjectGroup::getProjectId, projectId));
+        if(targetProject.size() == 0)
+            throw new BadRequestException("项目不存在");
+        for (int i = 0; i < targetProject.size(); i++) {
+            res.add(targetProject.get(i).getStaffId());
+        }
+        return res;
+    }
 }