diff --git a/IM_API_Collection.postman_collection.json b/IM_API_Collection.postman_collection.json
index 480c20a..d5be46c 100644
--- a/IM_API_Collection.postman_collection.json
+++ b/IM_API_Collection.postman_collection.json
@@ -755,7 +755,7 @@
 				{
 					"name": "移除群成员",
 					"request": {
-						"method": "DELETE",
+						"method": "POST",
 						"header": [
 							{
 								"key": "Authorization",
@@ -763,16 +763,16 @@
 							}
 						],
 						"url": {
-							"raw": "{{base_url}}/api/groups/group_1234567890/members/10004",
+							"raw": "{{base_url}}/api/groups/group_1234567890/members/10004/remove",
 							"host": ["{{base_url}}"],
-							"path": ["api", "groups", "group_1234567890", "members", "10004"]
+							"path": ["api", "groups", "group_1234567890", "members", "10004", "remove"]
 						}
 					}
 				},
 				{
 					"name": "修改群信息",
 					"request": {
-						"method": "PATCH",
+						"method": "POST",
 						"header": [
 							{
 								"key": "Authorization",
@@ -788,16 +788,16 @@
 							"raw": "{\n  \"name\": \"新的群名称\",\n  \"avatar\": \"NG\"\n}"
 						},
 						"url": {
-							"raw": "{{base_url}}/api/groups/group_1234567890",
+							"raw": "{{base_url}}/api/groups/group_1234567890/update",
 							"host": ["{{base_url}}"],
-							"path": ["api", "groups", "group_1234567890"]
+							"path": ["api", "groups", "group_1234567890", "update"]
 						}
 					}
 				},
 				{
 					"name": "调整成员角色",
 					"request": {
-						"method": "PATCH",
+						"method": "POST",
 						"header": [
 							{
 								"key": "Authorization",
@@ -818,6 +818,67 @@
 							"path": ["api", "groups", "group_1234567890", "members", "10002", "role"]
 						}
 					}
+				},
+				{
+					"name": "退出群聊",
+					"request": {
+						"method": "POST",
+						"header": [
+							{
+								"key": "Authorization",
+								"value": "Bearer {{token}}"
+							}
+						],
+						"url": {
+							"raw": "{{base_url}}/api/groups/group_1234567890/quit",
+							"host": ["{{base_url}}"],
+							"path": ["api", "groups", "group_1234567890", "quit"]
+						}
+					}
+				},
+				{
+					"name": "解散群聊",
+					"request": {
+						"method": "POST",
+						"header": [
+							{
+								"key": "Authorization",
+								"value": "Bearer {{token}}"
+							}
+						],
+						"url": {
+							"raw": "{{base_url}}/api/groups/group_1234567890/dissolve",
+							"host": ["{{base_url}}"],
+							"path": ["api", "groups", "group_1234567890", "dissolve"]
+						}
+					}
+				},
+				{
+					"name": "获取群通知列表",
+					"request": {
+						"method": "GET",
+						"header": [
+							{
+								"key": "Authorization",
+								"value": "Bearer {{token}}"
+							}
+						],
+						"url": {
+							"raw": "{{base_url}}/api/group-notifications?page=1&page_size=20",
+							"host": ["{{base_url}}"],
+							"path": ["api", "group-notifications"],
+							"query": [
+								{
+									"key": "page",
+									"value": "1"
+								},
+								{
+									"key": "page_size",
+									"value": "20"
+								}
+							]
+						}
+					}
 				}
 			]
 		},
diff --git a/cmd/server/main.go b/cmd/server/main.go
index 99d44f2..a7456db 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -357,9 +357,12 @@ func main() {
 			authGroup.GET("/groups/:room_id", api.GetGroupInfoHandler)
 			authGroup.GET("/groups/:room_id/members", api.ListGroupMembersHandler)
 			authGroup.POST("/groups/:room_id/members", api.AddGroupMembersHandler)
-			authGroup.DELETE("/groups/:room_id/members/:user_id", api.RemoveGroupMemberHandler)
-			authGroup.PATCH("/groups/:room_id", api.UpdateGroupInfoHandler)
-			authGroup.PATCH("/groups/:room_id/members/:user_id/role", api.ChangeMemberRoleHandler)
+			authGroup.POST("/groups/:room_id/members/:user_id/remove", api.RemoveGroupMemberHandler)
+			authGroup.POST("/groups/:room_id/update", api.UpdateGroupInfoHandler)
+			authGroup.POST("/groups/:room_id/members/:user_id/role", api.ChangeMemberRoleHandler)
+			authGroup.POST("/groups/:room_id/quit", api.QuitGroupHandler)
+			authGroup.POST("/groups/:room_id/dissolve", api.DissolveGroupHandler)
+			authGroup.GET("/group-notifications", api.GetGroupNotificationsHandler)
 
 			// 附件管理
 			authGroup.POST("/attachments/upload", api.UploadAttachmentHandler)
diff --git a/internal/api/room_handler.go b/internal/api/room_handler.go
index 8d16ac4..d87bd56 100644
--- a/internal/api/room_handler.go
+++ b/internal/api/room_handler.go
@@ -5,6 +5,7 @@
 package api
 
 import (
+	"strconv"
 	"xk-websocket-v2/internal/model"
 	"xk-websocket-v2/internal/service"
 	"xk-websocket-v2/internal/utils"
@@ -200,7 +201,7 @@ func AddGroupMembersHandler(c *gin.Context) {
 /**
  * RemoveGroupMemberHandler
  * 功能：移除群成员或退群
- * 路径：DELETE /api/groups/:room_id/members/:user_id
+ * 路径：POST /api/groups/:room_id/members/:user_id/remove
  */
 func RemoveGroupMemberHandler(c *gin.Context) {
 	operatorID, _ := c.Get("user_id")
@@ -229,7 +230,7 @@ func RemoveGroupMemberHandler(c *gin.Context) {
 /**
  * UpdateGroupInfoHandler
  * 功能：修改群名称/头像
- * 路径：PATCH /api/groups/:room_id
+ * 路径：POST /api/groups/:room_id/update
  */
 func UpdateGroupInfoHandler(c *gin.Context) {
 	userID, _ := c.Get("user_id")
@@ -282,7 +283,7 @@ func UpdateGroupInfoHandler(c *gin.Context) {
 /**
  * ChangeMemberRoleHandler
  * 功能：调整成员角色
- * 路径：PATCH /api/groups/:room_id/members/:user_id/role
+ * 路径：POST /api/groups/:room_id/members/:user_id/role
  */
 func ChangeMemberRoleHandler(c *gin.Context) {
 	operatorID, _ := c.Get("user_id")
@@ -304,3 +305,118 @@ func ChangeMemberRoleHandler(c *gin.Context) {
 
 	utils.Success(c, "角色已更新")
 }
+
+/**
+ * QuitGroupHandler
+ * 功能：群成员主动退出群聊
+ * 路径：POST /api/groups/:room_id/quit
+ */
+func QuitGroupHandler(c *gin.Context) {
+	userID, _ := c.Get("user_id")
+	roomID := c.Param("room_id")
+
+	// 校验用户是否为该群的成员
+	members, err := service.RoomSvc.ListGroupMembers(roomID)
+	if err != nil {
+		utils.InternalError(c, "查询成员失败")
+		return
+	}
+
+	isMember := false
+	for _, m := range members {
+		if m.UserID == userID.(string) {
+			isMember = true
+			break
+		}
+	}
+
+	if !isMember {
+		utils.BadRequest(c, "您不是该群的成员")
+		return
+	}
+
+	// 调用服务层退出群聊
+	if err := service.RoomSvc.QuitGroup(roomID, userID.(string)); err != nil {
+		utils.BadRequest(c, err.Error())
+		return
+	}
+
+	utils.Success(c, "已退出群聊")
+}
+
+/**
+ * DissolveGroupHandler
+ * 功能：群主解散群聊
+ * 路径：POST /api/groups/:room_id/dissolve
+ */
+func DissolveGroupHandler(c *gin.Context) {
+	userID, _ := c.Get("user_id")
+	roomID := c.Param("room_id")
+
+	// 调用服务层解散群聊
+	if err := service.RoomSvc.DissolveGroup(roomID, userID.(string)); err != nil {
+		utils.BadRequest(c, err.Error())
+		return
+	}
+
+	utils.Success(c, "群聊已解散")
+}
+
+/**
+ * GetGroupNotificationsHandler
+ * 功能：获取群通知列表
+ * 路径：GET /api/group-notifications
+ */
+func GetGroupNotificationsHandler(c *gin.Context) {
+	userID, _ := c.Get("user_id")
+
+	// 分页参数
+	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))
+	isReadStr := c.Query("is_read")
+
+	if page < 1 {
+		page = 1
+	}
+	if pageSize < 1 || pageSize > 100 {
+		pageSize = 20
+	}
+
+	// 构建查询条件
+	query := service.ChatSvc.DB.Model(&model.ChatMessage{}).
+		Where("message_type = ?", model.MessageTypeGroupNotif).
+		Where("room_id IN (SELECT room_id FROM room_members WHERE user_id = ?)", userID)
+
+	// 可选：按已读状态过滤
+	if isReadStr == "true" || isReadStr == "false" {
+		// 注意：chat_messages 表可能没有 is_read 字段，这里先不实现
+		// 如果需要，可以在 extra 字段中存储或使用其他方式
+	}
+
+	// 获取总数
+	var total int64
+	query.Count(&total)
+
+	// 分页查询
+	offset := (page - 1) * pageSize
+	var messages []model.ChatMessage
+	if err := query.Order("created_at desc").
+		Offset(offset).
+		Limit(pageSize).
+		Find(&messages).Error; err != nil {
+		utils.InternalError(c, "查询失败")
+		return
+	}
+
+	// 确保返回空数组而不是null
+	if messages == nil {
+		messages = []model.ChatMessage{}
+	}
+
+	utils.SuccessWithData(c, gin.H{
+		"data":     messages,
+		"total":    total,
+		"page":     page,
+		"page_size": pageSize,
+	}, "获取成功")
+}
diff --git a/internal/service/room_service.go b/internal/service/room_service.go
index ce72927..01f9ef2 100644
--- a/internal/service/room_service.go
+++ b/internal/service/room_service.go
@@ -374,6 +374,35 @@ func (s *RoomService) QuitGroup(roomID, userID string) error {
 	return s.RemoveRoomMember(roomID, userID)
 }
 
+/**
+ * DissolveGroup
+ * 功能：群主解散群聊
+ */
+func (s *RoomService) DissolveGroup(roomID, ownerID string) error {
+	room, err := s.GetRoom(roomID)
+	if err != nil {
+		return err
+	}
+
+	// 只有群主可以解散群
+	if ownerID != room.OwnerID {
+		return fmt.Errorf("只有群主可以解散群聊")
+	}
+
+	// 删除所有成员记录
+	if err := s.DB.Where("room_id = ?", roomID).Delete(&model.RoomMember{}).Error; err != nil {
+		return fmt.Errorf("删除成员记录失败: %v", err)
+	}
+
+	// 可选：标记房间为已解散（或直接删除房间）
+	// 这里选择删除房间记录
+	if err := s.DB.Where("room_id = ?", roomID).Delete(&model.ChatRoom{}).Error; err != nil {
+		return fmt.Errorf("删除房间记录失败: %v", err)
+	}
+
+	return nil
+}
+
 /**
  * ChangeMemberRole
  * 功能：修改成员角色（仅群主可设置/取消管理员）