diff --git a/dao/im.go b/dao/im.go
index d06b52d..deed105 100644
--- a/dao/im.go
+++ b/dao/im.go
@@ -244,7 +244,7 @@ func FindFriendsIDs(user_id int) []Friend {
 
 func FindFriends(user_id int) []FriendRet {
 	var friends []FriendRet
-	DB.Debug().Raw("select users.id, users.name, users.email from users join friends on users.id = friends.friend_id where friends.user_id = ? and friends.deleted_at is null", user_id).Scan(&friends)
+	DB.Debug().Raw("select distinct users.id, users.name, users.email from users join friends on users.id = friends.friend_id where friends.user_id = ? and friends.deleted_at is null", user_id).Scan(&friends)
 	return friends
 }
 func GetGroups(user_id int) []Group {
@@ -289,6 +289,11 @@ func FindGroupUsers(group_id int) []GroupUser {
 	DB.Debug().Where("group_id = ?", group_id).Find(&groupUsers)
 	return groupUsers
 }
+func FindGroupUsersInfo(group_id int) []FriendRet {
+	var groupUsers []FriendRet
+	DB.Debug().Raw("select distinct users.id, users.name, users.email from users join group_users on users.id = group_users.user_id where group_users.group_id = ?", group_id).Scan(&groupUsers)
+	return groupUsers
+}
 
 func FindGroupByNameLike(groupName string) []Group {
 	var groups []Group
diff --git a/handler/im.go b/handler/im.go
index 74ed1a9..4db633d 100644
--- a/handler/im.go
+++ b/handler/im.go
@@ -77,6 +77,7 @@ func SetUpIMGroup(router *gin.Engine) {
 	//获取好友请求
 	imGroup.POST("/get_friend_request", GetFriendRequest)
 	imGroup.POST("/del_friend_or_group", DelFriendOrGroup)
+	imGroup.POST("/get_group_users_info", GetGroupUsersInfo)
 }
 func generateRandomHexString(length int) (string, error) {
 	bytes := make([]byte, length/2) // 16字节的字符串需要32个十六进制字符，即16个字节
@@ -86,6 +87,31 @@ func generateRandomHexString(length int) (string, error) {
 	return hex.EncodeToString(bytes), nil
 }
 
+func GetGroupUsersInfo(c *gin.Context) {
+	var req Message
+	id, _ := c.Get("id")
+	user_id := int(id.(float64))
+	if err := c.ShouldBind(&req); err == nil {
+		if req.GroupID == 0 {
+			c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
+			return
+		}
+		group := dao.FindGroupByID(req.GroupID)
+		if len(group) == 0 {
+			c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
+			return
+		}
+		if group[0].AuthID != user_id {
+			c.JSON(http.StatusOK, gin.H{"error": "no permission", "code": proto.ParameterError, "message": "不是群主"})
+			return
+		}
+		data := dao.FindGroupUsersInfo(req.GroupID)
+		c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "data": data, "message": "success"})
+	} else {
+		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
+	}
+}
+
 func GetGroups(c *gin.Context) {
 	id, _ := c.Get("id")
 	user_id := int(id.(float64))
@@ -137,6 +163,29 @@ func DelFriendOrGroup(c *gin.Context) {
 		} else {
 			c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
 		}
+	} else if req.Type == 4 {
+		//群管理员删除群成员
+		if req.GroupID == 0 {
+			c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
+			return
+		}
+		//获取群
+		group := dao.FindGroupByID(req.GroupID)
+		if len(group) == 0 {
+			c.JSON(http.StatusOK, gin.H{"error": "parameter error", "code": proto.ParameterError, "message": "failed"})
+			return
+		}
+		//判断是否是群主
+		if group[0].AuthID != cid {
+			c.JSON(http.StatusOK, gin.H{"error": "no permission", "code": proto.ParameterError, "message": "不是群主"})
+			return
+		}
+		err2 := service.QuitGroupService(req.To_user_id, req.GroupID)
+		if err2 == nil {
+			c.JSON(http.StatusOK, gin.H{"code": proto.SuccessCode, "message": "success"})
+		} else {
+			c.JSON(http.StatusOK, gin.H{"error": err2.Error(), "code": proto.OperationFailed, "message": "failed"})
+		}
 	} else {
 		c.JSON(http.StatusOK, gin.H{"error": err.Error(), "code": proto.ParameterError, "message": "failed"})
 	}