diff --git a/api/usergroups.go b/api/usergroups.go
new file mode 100644
index 0000000..76129f0
--- /dev/null
+++ b/api/usergroups.go
@@ -0,0 +1,241 @@
+package api
+
+import (
+	"encoding/json"
+	"fmt"
+	"strconv"
+
+	"github.com/moooofly/harbor-go-client/utils"
+)
+
+func init() {
+	utils.Parser.AddCommand("usergroups_list",
+		"Get all user groups information",
+		"Get all user groups information",
+		&ugList)
+	utils.Parser.AddCommand("usergroup_create",
+		"Create user group",
+		"Create user group information",
+		&ugCreate)
+	utils.Parser.AddCommand("usergroup_del",
+		"Delete user group",
+		"Delete user group",
+		&ugDel)
+	utils.Parser.AddCommand("usergroup_get",
+		"Get user group information",
+		"Get user group information",
+		&ugGet)
+	utils.Parser.AddCommand("usergroup_update",
+		"Update group information",
+		"Update group information",
+		&ugUpdate)
+}
+
+type usergroupsList struct {
+}
+
+var ugList usergroupsList
+
+func (x *usergroupsList) Execute(args []string) error {
+	GetUsergroupsList(utils.URLGen("/api/usergroups"))
+	return nil
+}
+
+// GetUsergroupsList get all user groups information
+//
+// params:
+//
+// e.g. curl -X GET --header 'Accept: application/json' 'https://localhost/api/usergroups'
+func GetUsergroupsList(baseURL string) {
+	targetURL := baseURL
+	fmt.Println("==> GET", targetURL)
+
+	// Read beegosessionID from .cookie.yaml
+	c, err := utils.CookieLoad()
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+
+	utils.Request.Get(targetURL).
+		Set("Cookie", "harbor-lang=zh-cn; beegosessionID="+c.BeegosessionID).
+		End(utils.PrintStatus)
+}
+
+type usergroupCreate struct {
+	ID          int    `short:"i" long:"id" description:"The ID of the user group" default:"0" json:"id"`
+	GroupName   string `short:"n" long:"group_name" description:"The name of the user group" default:"tmp-group" json:"group_name"`
+	GroupType   int    `short:"t" long:"group_type" description:"The group type, 1 for LDAP group." default:"1" json:"group_type"`
+	LDAPGroupDN string `short:"l" long:"ldap_group_dn" description:"The DN of the LDAP group if group type is 1 (LDAP group)." default:"" json:"ldap_group_dn"`
+}
+
+var ugCreate usergroupCreate
+
+func (x *usergroupCreate) Execute(args []string) error {
+	PostUsergroupCreate(utils.URLGen("/api/usergroups"))
+	return nil
+}
+
+// PostUsergroupCreate create user group information
+//
+// params:
+//  id            - The ID of the user group
+//  group_name    - The name of the user group
+//  group_type    - The group type, 1 for LDAP group
+//  ldap_group_dn - The DN of the LDAP group if group type is 1 (LDAP group)
+//
+// e.g.
+/*
+curl -X POST --header 'Content-Type: application/json' --header 'Accept: text/plain' -d '{ \
+   "id": 100, \
+   "group_name": "tmp-group", \
+   "group_type": 1, \
+   "ldap_group_dn": "" \
+ }' 'https://localhost/api/usergroups'
+*/
+func PostUsergroupCreate(baseURL string) {
+	targetURL := baseURL
+	fmt.Println("==> POST", targetURL)
+
+	// Read beegosessionID from .cookie.yaml
+	c, err := utils.CookieLoad()
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+
+	t, err := json.Marshal(&ugCreate)
+	if err != nil {
+		fmt.Println("error:", err)
+		return
+	}
+
+	fmt.Println("===> usergroup create:", string(t))
+
+	utils.Request.Post(targetURL).
+		Set("Cookie", "harbor-lang=zh-cn; beegosessionID="+c.BeegosessionID).
+		Send(string(t)).
+		End(utils.PrintStatus)
+}
+
+type usergroupDel struct {
+	ID int `short:"i" long:"id" description:"(REQUIRED) The ID of the user group" required:"yes"`
+}
+
+var ugDel usergroupDel
+
+func (x *usergroupDel) Execute(args []string) error {
+	DeleteUsergroup(utils.URLGen("/api/usergroups"))
+	return nil
+}
+
+// DeleteUsergroup delete user group
+//
+// params:
+//  id - (REQUIRED) The ID of the user group
+//
+// e.g. curl -X DELETE --header 'Accept: text/plain' 'https://localhost/api/usergroups/1'
+func DeleteUsergroup(baseURL string) {
+	targetURL := baseURL + "/" + strconv.Itoa(ugDel.ID)
+	fmt.Println("==> DELETE", targetURL)
+
+	// Read beegosessionID from .cookie.yaml
+	c, err := utils.CookieLoad()
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+
+	utils.Request.Delete(targetURL).
+		Set("Cookie", "harbor-lang=zh-cn; beegosessionID="+c.BeegosessionID).
+		End(utils.PrintStatus)
+}
+
+type usergroupGet struct {
+	ID int `short:"i" long:"id" description:"(REQUIRED) The ID of the user group" required:"yes"`
+}
+
+var ugGet usergroupGet
+
+func (x *usergroupGet) Execute(args []string) error {
+	GetUsergroup(utils.URLGen("/api/usergroups"))
+	return nil
+}
+
+// GetUsergroup get user group information
+//
+// params:
+//  id - (REQUIRED) The ID of the user group
+//
+// e.g. curl -X GET --header 'Accept: text/plain' 'https://localhost/api/usergroups/1'
+func GetUsergroup(baseURL string) {
+	targetURL := baseURL + "/" + strconv.Itoa(ugGet.ID)
+	fmt.Println("==> GET", targetURL)
+
+	// Read beegosessionID from .cookie.yaml
+	c, err := utils.CookieLoad()
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+
+	utils.Request.Get(targetURL).
+		Set("Cookie", "harbor-lang=zh-cn; beegosessionID="+c.BeegosessionID).
+		End(utils.PrintStatus)
+}
+
+type usergroupUpdate struct {
+	ID          int    `short:"i" long:"id" description:"The ID of the user group" default:"0" json:"id"`
+	GroupName   string `short:"n" long:"group_name" description:"The name of the user group" default:"tmp-group" json:"group_name"`
+	GroupType   int    `short:"t" long:"group_type" description:"The group type, 1 for LDAP group." default:"1" json:"group_type"`
+	LDAPGroupDN string `short:"l" long:"ldap_group_dn" description:"The DN of the LDAP group if group type is 1 (LDAP group)." default:"" json:"ldap_group_dn"`
+}
+
+var ugUpdate usergroupUpdate
+
+func (x *usergroupUpdate) Execute(args []string) error {
+	PutUsergroup(utils.URLGen("/api/usergroups"))
+	return nil
+}
+
+// PutUsergroup update user group information
+//
+// params:
+//  id            - The ID of the user group
+//  group_name    - The name of the user group
+//  group_type    - The group type, 1 for LDAP group
+//  ldap_group_dn - The DN of the LDAP group if group type is 1 (LDAP group)
+//
+// e.g.
+/*
+curl -X PUT --header 'Content-Type: application/json' --header 'Accept: text/plain' -d '{ \
+   "id": 1, \
+   "group_name": "tmp-group", \
+   "group_type": 1, \
+   "ldap_group_dn": "" \
+ }' 'https://localhost/api/usergroups/1'
+*/
+func PutUsergroup(baseURL string) {
+	targetURL := baseURL + "/" + strconv.Itoa(ugUpdate.ID)
+	fmt.Println("==> PUT", targetURL)
+
+	// Read beegosessionID from .cookie.yaml
+	c, err := utils.CookieLoad()
+	if err != nil {
+		fmt.Println("Error:", err)
+		return
+	}
+
+	t, err := json.Marshal(&ugUpdate)
+	if err != nil {
+		fmt.Println("error:", err)
+		return
+	}
+
+	fmt.Println("===> usergroup update:", string(t))
+
+	utils.Request.Put(targetURL).
+		Set("Cookie", "harbor-lang=zh-cn; beegosessionID="+c.BeegosessionID).
+		Send(string(t)).
+		End(utils.PrintStatus)
+}