diff --git a/work/kf/knowledge.go b/work/kf/knowledge.go
new file mode 100644
index 0000000..1d196c1
--- /dev/null
+++ b/work/kf/knowledge.go
@@ -0,0 +1,359 @@
+package kf
+
+import (
+	"fmt"
+
+	"github.com/silenceper/wechat/v2/util"
+)
+
+const (
+	// addKnowledgeGroupURL 知识库分组添加
+	addKnowledgeGroupURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/add_group?access_token=%s"
+	// delKnowledgeGroupURL 知识库分组删除
+	delKnowledgeGroupURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/del_group?access_token=%s"
+	// modKnowledgeGroupURL 知识库分组修改
+	modKnowledgeGroupURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/mod_group?access_token=%s"
+	// listKnowledgeGroupURL 知识库分组列表
+	listKnowledgeGroupURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/list_group?access_token=%s"
+	// addKnowledgeIntentURL 知识库问答添加
+	addKnowledgeIntentURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/add_intent?access_token=%s"
+	// delKnowledgeIntentURL 知识库问答删除
+	delKnowledgeIntentURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/del_intent?access_token=%s"
+	// modKnowledgeIntentURL 知识库问答修改
+	modKnowledgeIntentURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/mod_intent?access_token=%s"
+	// listKnowledgeIntentURL 知识库问答列表
+	listKnowledgeIntentURL = "https://qyapi.weixin.qq.com/cgi-bin/kf/knowledge/list_intent?access_token=%s"
+)
+
+// AddKnowledgeGroupRequest 知识库分组添加请求
+type AddKnowledgeGroupRequest struct {
+	Name string `json:"name"`
+}
+
+// AddKnowledgeGroupResponse 知识库分组添加响应
+type AddKnowledgeGroupResponse struct {
+	util.CommonError
+	GroupID string `json:"group_id"`
+}
+
+// AddKnowledgeGroup 知识库分组添加
+// see https://developer.work.weixin.qq.com/document/path/95971#%E6%B7%BB%E5%8A%A0%E5%88%86%E7%BB%84
+func (r *Client) AddKnowledgeGroup(req *AddKnowledgeGroupRequest) (*AddKnowledgeGroupResponse, error) {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return nil, err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(addKnowledgeGroupURL, accessToken), req); err != nil {
+		return nil, err
+	}
+	result := &AddKnowledgeGroupResponse{}
+	err = util.DecodeWithError(response, result, "AddKnowledgeGroup")
+	return result, err
+}
+
+// DelKnowledgeGroupRequest 知识库分组删除请求
+type DelKnowledgeGroupRequest struct {
+	GroupID string `json:"group_id"`
+}
+
+// DelKnowledgeGroup 知识库分组删除
+// see https://developer.work.weixin.qq.com/document/path/95971#%E5%88%A0%E9%99%A4%E5%88%86%E7%BB%84
+func (r *Client) DelKnowledgeGroup(req *DelKnowledgeGroupRequest) error {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(delKnowledgeGroupURL, accessToken), req); err != nil {
+		return err
+	}
+	return util.DecodeWithCommonError(response, "DelKnowledgeGroup")
+}
+
+// ModKnowledgeGroupRequest 知识库分组修改请求
+type ModKnowledgeGroupRequest struct {
+	GroupID string `json:"group_id"`
+	Name    string `json:"name"`
+}
+
+// ModKnowledgeGroup 知识库分组修改
+// see https://developer.work.weixin.qq.com/document/path/95971#%E4%BF%AE%E6%94%B9%E5%88%86%E7%BB%84
+func (r *Client) ModKnowledgeGroup(req *ModKnowledgeGroupRequest) error {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(modKnowledgeGroupURL, accessToken), req); err != nil {
+		return err
+	}
+	return util.DecodeWithCommonError(response, "ModKnowledgeGroup")
+}
+
+// ListKnowledgeGroupRequest 知识库分组列表请求
+type ListKnowledgeGroupRequest struct {
+	Cursor  string `json:"cursor"`
+	Limit   int    `json:"limit"`
+	GroupID string `json:"group_id"`
+}
+
+// ListKnowledgeGroupResponse 知识库分组列表响应
+type ListKnowledgeGroupResponse struct {
+	util.CommonError
+	NextCursor string           `json:"next_cursor"`
+	HasMore    int              `json:"has_more"`
+	GroupList  []KnowledgeGroup `json:"group_list"`
+}
+
+// KnowledgeGroup 知识库分组
+type KnowledgeGroup struct {
+	GroupID   string `json:"group_id"`
+	Name      string `json:"name"`
+	IsDefault int    `json:"is_default"`
+}
+
+// ListKnowledgeGroup 知识库分组列表
+// see https://developer.work.weixin.qq.com/document/path/95971#%E8%8E%B7%E5%8F%96%E5%88%86%E7%BB%84%E5%88%97%E8%A1%A8
+func (r *Client) ListKnowledgeGroup(req *ListKnowledgeGroupRequest) (*ListKnowledgeGroupResponse, error) {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return nil, err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(listKnowledgeGroupURL, accessToken), req); err != nil {
+		return nil, err
+	}
+	result := &ListKnowledgeGroupResponse{}
+	err = util.DecodeWithError(response, result, "ListKnowledgeGroup")
+	return result, err
+}
+
+// AddKnowledgeIntentRequest 知识库问答添加请求
+type AddKnowledgeIntentRequest struct {
+	GroupID          string                 `json:"group_id"`
+	Question         IntentQuestion         `json:"question"`
+	SimilarQuestions IntentSimilarQuestions `json:"similar_questions"`
+	Answers          []IntentAnswerReq      `json:"answers"`
+}
+
+// IntentQuestion 主问题
+type IntentQuestion struct {
+	Text IntentQuestionText `json:"text"`
+}
+
+// IntentQuestionText 问题文本
+type IntentQuestionText struct {
+	Content string `json:"content"`
+}
+
+// IntentSimilarQuestions 相似问题
+type IntentSimilarQuestions struct {
+	Items []IntentQuestion `json:"items"`
+}
+
+// IntentAnswerReq 回答请求
+type IntentAnswerReq struct {
+	Text        IntentAnswerText            `json:"text"`
+	Attachments []IntentAnswerAttachmentReq `json:"attachments"`
+}
+
+// IntentAnswerText 回答文本
+type IntentAnswerText struct {
+	Content string `json:"content"`
+}
+
+// IntentAnswerAttachmentReq 回答附件请求
+type IntentAnswerAttachmentReq struct {
+	MsgType     string                               `json:"msgtype"`
+	Image       IntentAnswerAttachmentImgReq         `json:"image,omitempty"`
+	Video       IntentAnswerAttachmentVideoReq       `json:"video,omitempty"`
+	Link        IntentAnswerAttachmentLink           `json:"link,omitempty"`
+	MiniProgram IntentAnswerAttachmentMiniProgramReq `json:"miniprogram,omitempty"`
+}
+
+// IntentAnswerAttachmentImgReq 图片类型回答附件请求
+type IntentAnswerAttachmentImgReq struct {
+	MediaID string `json:"media_id"`
+}
+
+// IntentAnswerAttachmentVideoReq 视频类型回答附件请求
+type IntentAnswerAttachmentVideoReq struct {
+	MediaID string `json:"media_id"`
+}
+
+// IntentAnswerAttachmentLink 链接类型回答附件
+type IntentAnswerAttachmentLink struct {
+	Title  string `json:"title"`
+	PicURL string `json:"picurl"`
+	Desc   string `json:"desc"`
+	URL    string `json:"url"`
+}
+
+// IntentAnswerAttachmentMiniProgramReq 小程序类型回答附件请求
+type IntentAnswerAttachmentMiniProgramReq struct {
+	Title        string `json:"title"`
+	ThumbMediaID string `json:"thumb_media_id"`
+	AppID        string `json:"appid"`
+	PagePath     string `json:"pagepath"`
+}
+
+// AddKnowledgeIntentResponse 知识库问答添加响应
+type AddKnowledgeIntentResponse struct {
+	util.CommonError
+	IntentID string `json:"intent_id"`
+}
+
+// AddKnowledgeIntent 知识库问答添加
+// see https://developer.work.weixin.qq.com/document/path/95972#%E6%B7%BB%E5%8A%A0%E9%97%AE%E7%AD%94
+func (r *Client) AddKnowledgeIntent(req *AddKnowledgeIntentRequest) (*AddKnowledgeIntentResponse, error) {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return nil, err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(addKnowledgeIntentURL, accessToken), req); err != nil {
+		return nil, err
+	}
+	result := &AddKnowledgeIntentResponse{}
+	err = util.DecodeWithError(response, result, "AddKnowledgeIntent")
+	return result, err
+}
+
+// DelKnowledgeIntentRequest 知识库问答删除请求
+type DelKnowledgeIntentRequest struct {
+	IntentID string `json:"intent_id"`
+}
+
+// DelKnowledgeIntent 知识库问答删除
+// see https://developer.work.weixin.qq.com/document/path/95972#%E5%88%A0%E9%99%A4%E9%97%AE%E7%AD%94
+func (r *Client) DelKnowledgeIntent(req *DelKnowledgeIntentRequest) error {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(delKnowledgeIntentURL, accessToken), req); err != nil {
+		return err
+	}
+	return util.DecodeWithCommonError(response, "DelKnowledgeIntent")
+}
+
+// ModKnowledgeIntentRequest 知识库问答修改请求
+type ModKnowledgeIntentRequest struct {
+	IntentID         string                 `json:"intent_id"`
+	Question         IntentQuestion         `json:"question"`
+	SimilarQuestions IntentSimilarQuestions `json:"similar_questions"`
+	Answers          []IntentAnswerReq      `json:"answers"`
+}
+
+// ModKnowledgeIntent 知识库问答修改
+// see https://developer.work.weixin.qq.com/document/path/95972#%E4%BF%AE%E6%94%B9%E9%97%AE%E7%AD%94
+func (r *Client) ModKnowledgeIntent(req *ModKnowledgeIntentRequest) error {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(modKnowledgeIntentURL, accessToken), req); err != nil {
+		return err
+	}
+	return util.DecodeWithCommonError(response, "ModKnowledgeIntent")
+}
+
+// ListKnowledgeIntentRequest 知识库问答列表请求
+type ListKnowledgeIntentRequest struct {
+	Cursor   string `json:"cursor"`
+	Limit    int    `json:"limit"`
+	GroupID  string `json:"group_id"`
+	IntentID string `json:"intent_id"`
+}
+
+// ListKnowledgeIntentResponse 知识库问答列表响应
+type ListKnowledgeIntentResponse struct {
+	util.CommonError
+	NextCursor string            `json:"next_cursor"`
+	HasMore    int               `json:"has_more"`
+	IntentList []KnowledgeIntent `json:"intent_list"`
+}
+
+// KnowledgeIntent 问答摘要
+type KnowledgeIntent struct {
+	GroupID          string                 `json:"group_id"`
+	IntentID         string                 `json:"intent_id"`
+	Question         IntentQuestion         `json:"question"`
+	SimilarQuestions IntentSimilarQuestions `json:"similar_questions"`
+	Answers          []IntentAnswerRes      `json:"answers"`
+}
+
+// IntentAnswerRes 回答返回
+type IntentAnswerRes struct {
+	Text        IntentAnswerText            `json:"text"`
+	Attachments []IntentAnswerAttachmentRes `json:"attachments"`
+}
+
+// IntentAnswerAttachmentRes 回答附件返回
+type IntentAnswerAttachmentRes struct {
+	MsgType     string                               `json:"msgtype"`
+	Image       IntentAnswerAttachmentImgRes         `json:"image,omitempty"`
+	Video       IntentAnswerAttachmentVideoRes       `json:"video,omitempty"`
+	Link        IntentAnswerAttachmentLink           `json:"link,omitempty"`
+	MiniProgram IntentAnswerAttachmentMiniProgramRes `json:"miniprogram,omitempty"`
+}
+
+// IntentAnswerAttachmentImgRes 图片类型回答附件返回
+type IntentAnswerAttachmentImgRes struct {
+	Name string `json:"name"`
+}
+
+// IntentAnswerAttachmentVideoRes 视频类型回答附件返回
+type IntentAnswerAttachmentVideoRes struct {
+	Name string `json:"name"`
+}
+
+// IntentAnswerAttachmentMiniProgramRes 小程序类型回答附件返回
+type IntentAnswerAttachmentMiniProgramRes struct {
+	Title    string `json:"title"`
+	AppID    string `json:"appid"`
+	PagePath string `json:"pagepath"`
+}
+
+// ListKnowledgeIntent 知识库问答列表
+// see https://developer.work.weixin.qq.com/document/path/95972#%E8%8E%B7%E5%8F%96%E9%97%AE%E7%AD%94%E5%88%97%E8%A1%A8
+func (r *Client) ListKnowledgeIntent(req *ListKnowledgeIntentRequest) (*ListKnowledgeIntentResponse, error) {
+	var (
+		accessToken string
+		err         error
+	)
+	if accessToken, err = r.ctx.GetAccessToken(); err != nil {
+		return nil, err
+	}
+	var response []byte
+	if response, err = util.PostJSON(fmt.Sprintf(listKnowledgeIntentURL, accessToken), req); err != nil {
+		return nil, err
+	}
+	result := &ListKnowledgeIntentResponse{}
+	err = util.DecodeWithError(response, result, "ListKnowledgeIntent")
+	return result, err
+}