diff --git a/caller.go b/caller.go
index 7775e1d..619c8a4 100644
--- a/caller.go
+++ b/caller.go
@@ -250,6 +250,50 @@ func (c *Caller) WebWxSendMsg(ctx context.Context, opt *CallerWebWxSendMsgOption
 	return parser.SentMessage(opt.Message)
 }
 
+// WebWxSendEmoticon 发送表情接口
+func (c *Caller) WebWxSendEmoticon(ctx context.Context, md5 string, reader io.Reader, opt *CallerWebWxSendAppMsgOptions) (*SentMessage, error) {
+	md5OrMediaid := md5
+	if reader != nil {
+		file, cb, err := readerToFile(reader)
+		if err != nil {
+			return nil, err
+		}
+		defer cb()
+		// 首先尝试上传图片
+		var mediaId string
+		{
+			uploadMediaOption := &CallerUploadMediaOptions{
+				FromUserName: opt.FromUserName,
+				ToUserName:   opt.ToUserName,
+				BaseRequest:  opt.BaseRequest,
+				LoginInfo:    opt.LoginInfo,
+			}
+			resp, err := c.UploadMedia(ctx, file, uploadMediaOption)
+			if err != nil {
+				return nil, err
+			}
+			mediaId = resp.MediaId
+		}
+
+		md5OrMediaid = mediaId
+	}
+
+	msg := NewEmoticonSendMessage(opt.FromUserName, opt.ToUserName, md5OrMediaid)
+
+	wxSendMsgOption := &ClientWebWxSendMsgOptions{
+		BaseRequest: opt.BaseRequest,
+		LoginInfo:   opt.LoginInfo,
+		Message:     msg,
+	}
+	resp, err := c.Client.WebWxSendEmoticon(ctx, wxSendMsgOption)
+	if err != nil {
+		return nil, err
+	}
+	defer func() { _ = resp.Body.Close() }()
+	parser := MessageResponseParser{resp.Body}
+	return parser.SentMessage(msg)
+}
+
 type CallerWebWxOplogOptions struct {
 	RemarkName  string
 	ToUserName  string
diff --git a/client.go b/client.go
index 516b1d5..60bb30c 100644
--- a/client.go
+++ b/client.go
@@ -438,6 +438,21 @@ func (c *Client) WebWxSendMsg(ctx context.Context, opt *ClientWebWxSendMsgOption
 	return c.sendMessage(ctx, opt.BaseRequest, path.String(), opt.Message)
 }
 
+// WebWxSendMsg 发送表情消息
+func (c *Client) WebWxSendEmoticon(ctx context.Context, opt *ClientWebWxSendMsgOptions) (*http.Response, error) {
+	opt.Message.Type = MsgTypeText
+	path, err := url.Parse(c.Domain.BaseHost() + webwxsendemoticon)
+	if err != nil {
+		return nil, err
+	}
+	params := url.Values{}
+	params.Add("fun", "sys")
+	params.Add("lang", "zh_CN")
+	params.Add("pass_ticket", opt.LoginInfo.PassTicket)
+	path.RawQuery = params.Encode()
+	return c.sendMessage(ctx, opt.BaseRequest, path.String(), opt.Message)
+}
+
 // WebWxGetHeadImg 获取用户的头像
 func (c *Client) WebWxGetHeadImg(ctx context.Context, user *User) (*http.Response, error) {
 	var path string
diff --git a/message.go b/message.go
index f3feef3..83f2fab 100644
--- a/message.go
+++ b/message.go
@@ -177,6 +177,16 @@ func (m *Message) ReplyText(content string) (*SentMessage, error) {
 	return m.Owner().sendTextToUser(username, content)
 }
 
+// ReplyEmoticon 回复表情
+func (m *Message) ReplyEmoticon(md5 string, file io.Reader) (*SentMessage, error) {
+	// 判断是否由自己发送
+	username := m.FromUserName
+	if m.IsSelfSendToGroup() {
+		username = m.ToUserName
+	}
+	return m.Owner().sendEmoticonToUser(username, md5, file)
+}
+
 // ReplyImage 回复图片消息
 func (m *Message) ReplyImage(file io.Reader) (*SentMessage, error) {
 	// 判断是否由自己发送
@@ -494,6 +504,8 @@ type SendMessage struct {
 	LocalID      string
 	ClientMsgId  string
 	MediaId      string `json:"MediaId,omitempty"`
+	EmojiFlag    int    `json:"EmojiFlag,omitempty"`
+	EMoticonMd5  string `json:"EMoticonMd5,omitempty"`
 }
 
 // NewSendMessage SendMessage的构造方法
@@ -520,6 +532,18 @@ func NewMediaSendMessage(msgType MessageType, fromUserName, toUserName, mediaId
 	return NewSendMessage(msgType, "", fromUserName, toUserName, mediaId)
 }
 
+// NewEmoticonSendMessage 表情消息的构造方法
+func NewEmoticonSendMessage(fromUserName, toUserName, md5OrMediaId string) *SendMessage {
+	msg := NewSendMessage(MsgTypeEmoticon, "", fromUserName, toUserName, "")
+	msg.EmojiFlag = 2
+	if strings.HasPrefix(md5OrMediaId, "@") {
+		msg.MediaId = md5OrMediaId
+	} else {
+		msg.EMoticonMd5 = md5OrMediaId
+	}
+	return msg
+}
+
 // RecommendInfo 一些特殊类型的消息会携带该结构体信息
 type RecommendInfo struct {
 	OpCode     int
diff --git a/url.go b/url.go
index f4ad9e7..aa3b232 100644
--- a/url.go
+++ b/url.go
@@ -14,6 +14,7 @@ const (
 	webwxstatusnotify    = "/cgi-bin/mmwebwx-bin/webwxstatusnotify"
 	webwxsync            = "/cgi-bin/mmwebwx-bin/webwxsync"
 	webwxsendmsg         = "/cgi-bin/mmwebwx-bin/webwxsendmsg"
+	webwxsendemoticon    = "/cgi-bin/mmwebwx-bin/webwxsendemoticon"
 	webwxgetcontact      = "/cgi-bin/mmwebwx-bin/webwxgetcontact"
 	webwxsendmsgimg      = "/cgi-bin/mmwebwx-bin/webwxsendmsgimg"
 	webwxsendappmsg      = "/cgi-bin/mmwebwx-bin/webwxsendappmsg"
diff --git a/user.go b/user.go
index 1dc668f..53fddb6 100644
--- a/user.go
+++ b/user.go
@@ -384,6 +384,17 @@ func (s *Self) sendTextToUser(username, text string) (*SentMessage, error) {
 	return s.sendMessageWrapper(sentMessage, err)
 }
 
+func (s *Self) sendEmoticonToUser(username, md5 string, file io.Reader) (*SentMessage, error) {
+	opt := &CallerWebWxSendAppMsgOptions{
+		LoginInfo:   s.bot.Storage.LoginInfo,
+		BaseRequest: s.bot.Storage.Request,
+		FromUserName: s.UserName,
+		ToUserName:   username,
+	}
+	sentMessage, err := s.bot.Caller.WebWxSendEmoticon(s.Bot().Context(), md5, file, opt)
+	return s.sendMessageWrapper(sentMessage, err)
+}
+
 func (s *Self) sendImageToUser(username string, file io.Reader) (*SentMessage, error) {
 	opt := &CallerWebWxSendImageMsgOptions{
 		FromUserName: s.UserName,
@@ -422,6 +433,11 @@ func (s *Self) SendTextToFriend(friend *Friend, text string) (*SentMessage, erro
 	return s.sendTextToUser(friend.User.UserName, text)
 }
 
+// SendEmoticonToFriend 发送表情给好友
+func (s *Self) SendEmoticonToFriend(friend *Friend, md5 string, file io.Reader) (*SentMessage, error) {
+	return s.sendEmoticonToUser(friend.User.UserName, md5, file)
+}
+
 // SendImageToFriend 发送图片消息给好友
 func (s *Self) SendImageToFriend(friend *Friend, file io.Reader) (*SentMessage, error) {
 	return s.sendImageToUser(friend.User.UserName, file)
@@ -585,6 +601,11 @@ func (s *Self) SendImageToGroup(group *Group, file io.Reader) (*SentMessage, err
 	return s.sendImageToUser(group.User.UserName, file)
 }
 
+// SendImageToGroup 发送图片消息给群组
+func (s *Self) SendEmoticonToGroup(group *Group, md5 string, file io.Reader) (*SentMessage, error) {
+	return s.sendEmoticonToUser(group.User.UserName, md5, file)
+}
+
 // SendVideoToGroup 发送视频给群组
 func (s *Self) SendVideoToGroup(group *Group, file io.Reader) (*SentMessage, error) {
 	return s.sendVideoToUser(group.User.UserName, file)
@@ -694,6 +715,18 @@ func (s *Self) sendTextToMembers(text string, delay time.Duration, members ...*U
 	return s.sendMessageToMember(sendMessageFunc, delay, members[1:]...)
 }
 
+// sendEmoticonToMembers 发送表情消息给群组或者好友
+func (s *Self) sendEmoticonToMembers(md5 string, file io.Reader, delay time.Duration, members ...*User) error {
+	if len(members) == 0 {
+		return nil
+	}
+	var sendMessageFunc SendMessageFunc = func() (*SentMessage, error) {
+		user := members[0]
+		return s.sendEmoticonToUser(user.UserName, md5, file)
+	}
+	return s.sendMessageToMember(sendMessageFunc, delay, members[1:]...)
+}
+
 // sendImageToMembers 发送图片消息给群组或者好友
 func (s *Self) sendImageToMembers(img io.Reader, delay time.Duration, members ...*User) error {
 	if len(members) == 0 {
@@ -736,6 +769,12 @@ func (s *Self) SendTextToFriends(text string, delay time.Duration, friends ...*F
 	return s.sendTextToMembers(text, delay, members...)
 }
 
+// SendEmoticonToFriends 发送表情给好友
+func (s *Self) SendEmoticonToFriends(md5 string, file io.Reader, delay time.Duration, friends ...*Friend) error {
+	members := Friends(friends).AsMembers()
+	return s.sendEmoticonToMembers(md5, file, delay, members...)
+}
+
 // SendImageToFriends 发送图片消息给好友
 func (s *Self) SendImageToFriends(img io.Reader, delay time.Duration, friends ...*Friend) error {
 	members := Friends(friends).AsMembers()
@@ -760,6 +799,12 @@ func (s *Self) SendTextToGroups(text string, delay time.Duration, groups ...*Gro
 	return s.sendTextToMembers(text, delay, members...)
 }
 
+// SendEmoticonToGroups 发送表情给群组
+func (s *Self) SendEmoticonToGroups(md5 string, file io.Reader, delay time.Duration, groups ...*Group) error {
+	members := Groups(groups).AsMembers()
+	return s.sendEmoticonToMembers(md5, file, delay, members...)
+}
+
 // SendImageToGroups 发送图片消息给群组
 func (s *Self) SendImageToGroups(img io.Reader, delay time.Duration, groups ...*Group) error {
 	members := Groups(groups).AsMembers()
@@ -1026,6 +1071,11 @@ func (s *Self) SendTextToMp(mp *Mp, text string) (*SentMessage, error) {
 	return s.sendTextToUser(mp.User.UserName, text)
 }
 
+// SendEmoticonToMp 发送表情给公众号
+func (s *Self) SendEmoticonToMp(mp *Mp, md5 string, file io.Reader) (*SentMessage, error) {
+	return s.sendEmoticonToUser(mp.User.UserName, md5, file)
+}
+
 // SendImageToMp 发送图片消息给公众号
 func (s *Self) SendImageToMp(mp *Mp, file io.Reader) (*SentMessage, error) {
 	return s.sendImageToUser(mp.User.UserName, file)