diff --git a/models/discord/channel.go b/models/discord/channel.go
index 6ce6765..510a3be 100644
--- a/models/discord/channel.go
+++ b/models/discord/channel.go
@@ -7,6 +7,8 @@ import (
 	"time"
 )
 
+var nerr = errors.New
+
 // ChannelModel -
 type ChannelModel struct {
 	ID           string    `db:"id"`
@@ -129,6 +131,9 @@ func (p *ChannelModel) GetFacebookPageTmpl(fbid string) (tmpl string, err error)
 	if err != nil {
 		return "", err
 	}
+	if rt == nil {
+		return "", errors.New("rt not found")
+	}
 	tmpl = rt.Tmpl
 	rt = nil
 	return tmpl, nil
@@ -138,3 +143,30 @@ func (p *ChannelModel) GetFacebookPageTmpl(fbid string) (tmpl string, err error)
 func (p *ChannelModel) DeleteFacebookPage(fbid string) (err error) {
 	return DeleteFacebookRT(p.ID, fbid)
 }
+
+// GetInstagramByID -
+func (p *ChannelModel) GetInstagramByID(id string) (ig *pubmodel.InstagramModel, err error) {
+	return pubmodel.GetInstagramByChannelAndID(id, p.ID)
+}
+
+// GetInstagramTmpl -
+func (p *ChannelModel) GetInstagramTmpl(id string) (tmpl string, err error) {
+	if len(id) == 0 {
+		return "", nerr("id is empty")
+	}
+	rt, err := GetInstagramRT(p.ID, id)
+	if err != nil {
+		return "", err
+	}
+	if rt == nil {
+		return "", nerr("rt not found")
+	}
+	tmpl = rt.Tmpl
+	rt = nil
+	return tmpl, nil
+}
+
+// DeleteInstagram -
+func (p *ChannelModel) DeleteInstagram(id string) (err error) {
+	return DeleteInstagramRT(p.ID, id)
+}
diff --git a/models/discord/rt_table.go b/models/discord/rt_table.go
index d78a6cb..881565e 100644
--- a/models/discord/rt_table.go
+++ b/models/discord/rt_table.go
@@ -1,6 +1,7 @@
 package discord
 
 import (
+	"database/sql"
 	"dorisbot/models"
 	"errors"
 	"time"
@@ -103,3 +104,80 @@ func DeleteFacebookRT(channel, facebook string) (err error) {
 	}
 	return
 }
+
+// CreateInstagramRT -
+func CreateInstagramRT(channel, instagram, tmpl string) (rt *ChannelInstagramRT, err error) {
+	if len(channel) == 0 || len(instagram) == 0 {
+		return nil, errors.New("channel or ig is empty")
+	}
+
+	rt = &ChannelInstagramRT{
+		Channel:   channel,
+		Instagram: instagram,
+		Tmpl:      tmpl,
+	}
+	return rt, nil
+}
+
+// Write -
+func (p *ChannelInstagramRT) Write() (err error) {
+	db := models.GetConn()
+	query := `insert into "discord"."channel_instagram_rt"
+		("channel", "instagram", "tmpl") values (:channel, :instagram, :tmpl) returning *`
+	row, err := db.NamedQuery(query, p)
+	if err != nil {
+		return err
+	}
+	defer row.Close()
+	if row.Next() {
+		err = row.StructScan(p)
+		if err != nil {
+			return err
+		}
+	}
+	return
+}
+
+// GetInstagramRT -
+func GetInstagramRT(channel, instagram string) (rt *ChannelInstagramRT, err error) {
+	if len(channel) == 0 || len(instagram) == 0 {
+		return nil, errors.New("channel or ig is empty")
+	}
+	db := models.GetConn()
+	query := `
+		select
+			"channel", "instagram", "ctime", "mtime"
+		from "discord"."channel_instagram_rt"
+		where
+			"channel" = $1
+			and "instagram" = $2
+	`
+	rt = &ChannelInstagramRT{}
+	err = db.Get(rt, query, channel, instagram)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return
+}
+
+// DeleteInstagramRT -
+func DeleteInstagramRT(channel, instagram string) (err error) {
+	if len(channel) == 0 || len(instagram) == 0 {
+		return errors.New("channel or ig is empty")
+	}
+	db := models.GetConn()
+	query := `
+		delete from "discord"."channel_instagram_rt"
+		where
+			"channel" = $1
+			and "instagram" = $2
+	`
+	_, err = db.Exec(query, channel, instagram)
+	if err != nil {
+		return err
+	}
+	return
+}
diff --git a/models/public/facebook.go b/models/public/facebook.go
index bce936d..1046ca5 100644
--- a/models/public/facebook.go
+++ b/models/public/facebook.go
@@ -50,7 +50,15 @@ func GetFacebookPageListByChannel(channel string) (pages []*FacebookPageModel, e
 		return nil, errors.New("channel is empty")
 	}
 	db := models.GetConn()
-	query := `select id, lastpost, ctime, mtime from public.facebook_page where channel = $1`
+	query := `
+		select 
+			fb.id, fb.lastpost, fb.ctime, fb.mtime 
+		from public.facebook_page fb
+		left join "discord"."channel_facebook_rt" rt
+			on rt.facebook = fb.id
+		left join "discord"."channel" ch
+			on ch.id = rt.channel
+		where ch.channel = $1`
 	err = db.Select(&pages, query, channel)
 	if err != nil {
 		return nil, err
diff --git a/models/public/instagram.go b/models/public/instagram.go
new file mode 100644
index 0000000..28c46de
--- /dev/null
+++ b/models/public/instagram.go
@@ -0,0 +1,117 @@
+package public
+
+import (
+	"database/sql"
+	"dorisbot/models"
+	"errors"
+	"time"
+)
+
+// InstagramModel -
+type InstagramModel struct {
+	ID       string    `db:"id"`
+	LastPost string    `db:"lastpost"`
+	Ctime    time.Time `db:"ctime"`
+	Mtime    time.Time `db:"mtime"`
+}
+
+// NewInstagram -
+func NewInstagram(id string) (ig *InstagramModel, err error) {
+	if len(id) == 0 {
+		return nil, errors.New("id is empty")
+	}
+	ig = &InstagramModel{ID: id}
+	return ig, nil
+}
+
+// Write -
+func (p *InstagramModel) Write() (err error) {
+	db := models.GetConn()
+	query := `
+		insert into "public"."instagram" ("id", "lastpost") values (:id, :lastpost) returning *
+	`
+	row, err := db.NamedQuery(query, p)
+	if err != nil {
+		return err
+	}
+	defer row.Close()
+
+	if row.Next() {
+		err = row.StructScan(p)
+		if err != nil {
+			return err
+		}
+	}
+	return
+}
+
+// UpdatePost -
+func (p *InstagramModel) UpdatePost(postid string) (err error) {
+	db := models.GetConn()
+	query := `update "public"."instagram" set 
+		"lastpost" = $1,
+		"mtime" = now()
+		where "id" = $2`
+	_, err = db.Exec(query, postid, p.ID)
+	if err != nil {
+		return err
+	}
+	p.LastPost = postid
+	return
+}
+
+// GetInstagramByID -
+func GetInstagramByID(id string) (ig *InstagramModel, err error) {
+	if len(id) == 0 {
+		return nil, errors.New("id is empty")
+	}
+
+	ig = &InstagramModel{}
+	db := models.GetConn()
+	query := `
+		select
+			"id", "lastpost", "ctime", "mtime"
+		from "public"."instagram"
+		where
+			"id" = $1
+	`
+	err = db.Get(ig, query, id)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+
+	return
+}
+
+// GetInstagramByChannelAndID -
+func GetInstagramByChannelAndID(id, channel string) (ig *InstagramModel, err error) {
+	if len(channel) == 0 || len(id) == 0 {
+		return nil, errors.New("channel or ig is empty")
+	}
+
+	ig = &InstagramModel{}
+	db := models.GetConn()
+	query := `
+		select
+			ig.id, ig.lastpost, ig.ctime, ig.mtime
+		from "public"."instagram" ig
+		left join "discord"."channel_instagram_rt" rt
+			on rt.instagram = ig.id
+		left join "discord"."channel" ch
+			on ch.id = rt.channel
+		where
+			ch.id = $1
+			and ig.id = $2
+	`
+	err = db.Get(ig, query, channel, ig)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return nil, nil
+		}
+		return nil, err
+	}
+	return
+}