diff --git a/internal/logic/domain/group/model/group_notice.go b/internal/logic/domain/group/model/group_notice.go
new file mode 100644
index 0000000..83022ea
--- /dev/null
+++ b/internal/logic/domain/group/model/group_notice.go
@@ -0,0 +1,17 @@
+package model
+
+import (
+	"time"
+)
+
+type GroupComplain struct {
+	Id           int64     // 自增主键
+	GroupId      int64     // 群组id
+	UserId       int64     // 用户id
+	ComplainType int       // 投诉类型(1:存在赌博行为 2:存在骗钱行为 3:不当信息骚扰 4:传播谣言 5:发布假冒商品信息 6:侵犯未成年人权益 7:其他)
+	Text         string    // 投诉内容
+	ImageList    string    // 图片
+	Status       int       // 状态
+	CreateTime   time.Time // 创建时间
+	UpdateTime   time.Time // 更新时间
+}
diff --git a/internal/logic/domain/group/model/group_notice_with_like_records.go b/internal/logic/domain/group/model/group_notice_with_like_records.go
new file mode 100644
index 0000000..4000023
--- /dev/null
+++ b/internal/logic/domain/group/model/group_notice_with_like_records.go
@@ -0,0 +1,17 @@
+package model
+
+import (
+	"time"
+)
+
+type GroupNotice struct {
+	Id          int64     // 自增主键
+	GroupId     int64     // 群组id
+	UserId      int64     // 用户id
+	Content     string    // 公告内容
+	LikeNums    int       // 点赞数量
+	ReadNums    int       // 阅读数量
+	PublishType int32     // 发布方式(1:仅发布 2:发布并通知 3:通知并置顶)
+	CreateTime  time.Time // 创建时间
+	UpdateTime  time.Time // 更新时间
+}
diff --git a/internal/logic/domain/group/repo/group_notice_dao.go b/internal/logic/domain/group/repo/group_notice_dao.go
new file mode 100644
index 0000000..75ca20a
--- /dev/null
+++ b/internal/logic/domain/group/repo/group_notice_dao.go
@@ -0,0 +1,35 @@
+package repo
+
+import (
+	"egg-im/internal/logic/domain/group/model"
+	"egg-im/pkg/db"
+	"egg-im/pkg/gerrors"
+
+	"github.com/jinzhu/gorm"
+)
+
+type groupComplainDao struct{}
+
+var GroupComplainDao = new(groupComplainDao)
+
+// Get 获取群组信息
+func (*groupComplainDao) Get(id int64) (*model.GroupComplain, error) {
+	var group = model.GroupComplain{Id: id}
+	err := db.DB.First(&group).Error
+	if err != nil && err != gorm.ErrRecordNotFound {
+		return nil, gerrors.WrapError(err)
+	}
+	if err == gorm.ErrRecordNotFound {
+		return nil, nil
+	}
+	return &group, nil
+}
+
+// Save 插入一条群组
+func (*groupComplainDao) Save(group *model.GroupComplain) error {
+	err := db.DB.Save(&group).Error
+	if err != nil {
+		return gerrors.WrapError(err)
+	}
+	return nil
+}
diff --git a/internal/logic/domain/group/repo/group_notice_with_like_records_dao.go b/internal/logic/domain/group/repo/group_notice_with_like_records_dao.go
new file mode 100644
index 0000000..c01a83e
--- /dev/null
+++ b/internal/logic/domain/group/repo/group_notice_with_like_records_dao.go
@@ -0,0 +1,35 @@
+package repo
+
+import (
+	"egg-im/internal/logic/domain/group/model"
+	"egg-im/pkg/db"
+	"egg-im/pkg/gerrors"
+
+	"github.com/jinzhu/gorm"
+)
+
+type groupNoticeDao struct{}
+
+var GroupNoticeDao = new(groupNoticeDao)
+
+// Get 获取群组公告信息
+func (*groupNoticeDao) Get(groupId int64) (*model.GroupNotice, error) {
+	var group = model.GroupNotice{GroupId: groupId}
+	err := db.DB.First(&group).Error
+	if err != nil && err != gorm.ErrRecordNotFound {
+		return nil, gerrors.WrapError(err)
+	}
+	if err == gorm.ErrRecordNotFound {
+		return nil, nil
+	}
+	return &group, nil
+}
+
+// Save 插入一条群组
+func (*groupNoticeDao) Save(groupNotice *model.GroupNotice) error {
+	err := db.DB.Save(&groupNotice).Error
+	if err != nil {
+		return gerrors.WrapError(err)
+	}
+	return nil
+}
diff --git a/pkg/proto/business.ext.proto b/pkg/proto/business.ext.proto
index 84ce20a..e384971 100644
--- a/pkg/proto/business.ext.proto
+++ b/pkg/proto/business.ext.proto
@@ -21,8 +21,45 @@ service BusinessExt {
   rpc IsFriends (IsFriendsReq) returns (IsFriendsResp);
   // 投诉群
   rpc ComplainGroup (ComplainGroupReq) returns (Empty);
+  // 发布群公告
+  rpc PublishGroupNotice (PublishGroupNoticeReq) returns (Empty);
+  // 查看群公告
+  rpc ViewGroupNotice (ViewGroupNoticeReq) returns (ViewGroupNoticeResp);
+  // 点赞群公告
+  rpc LikeGroupNotice (LikeGroupNoticeReq) returns (Empty);
+  // 取消点赞群公告
+  rpc CancelLikeGroupNotice (CancelLikeGroupNoticeReq) returns (Empty);
 }
 
+message LikeGroupNoticeReq {
+  int64 group_id = 1;
+}
+
+message CancelLikeGroupNoticeReq {
+  int64 group_id = 1;
+}
+
+message ViewGroupNoticeReq {
+  int64 group_id = 1;
+}
+
+message ViewGroupNoticeResp {
+  int64 group_id = 1;
+  int64 user_id = 2; //发布用户id
+  string content = 3; //公告内容
+  int64 like_nums = 4; //点赞数量
+  int64 read_nums = 5; //阅读数量
+  GroupNoticePublishType publish_type = 6; // 发布方式
+  string publish_time = 7; // 发布时间
+  bool is_like = 8; // 是否点赞
+}
+
+message PublishGroupNoticeReq {
+  int64 group_id = 1;
+  int64 user_id = 2; //发布用户id
+  GroupNoticePublishType publish_type = 3; // 发布方式
+  string content = 4; // 发布内容
+}
 
 message ComplainGroupReq {
   int64 group_id = 1;
@@ -31,7 +68,7 @@ message ComplainGroupReq {
   repeated string image_list = 4; // 图片
 }
 
-// 消息类型
+// 投诉类型
 enum ComplainType {
   CT_UNKNOWN = 0; // 未知
   CT_GAMBLE = 1; // 存在赌博行为
@@ -43,6 +80,14 @@ enum ComplainType {
   MT_OTHER = 7; // 其他
 }
 
+// 群公告发布方式
+enum GroupNoticePublishType {
+  UNKNOWN_PUBLISH = 0; // 未知
+  ONLY_PUBLISH = 1; // 仅发布
+  PUBLISH_AND_NOTICE = 2; // 发布并通知
+  NOTICE_AND_TOP_UP = 3; // 存在骗钱行为
+}
+
 
 message IsFriendsReq {
   string user_phone = 1;