diff --git a/internal/theme/common/detail.go b/internal/theme/common/detail.go
index 4bc34e0..df8c48c 100644
--- a/internal/theme/common/detail.go
+++ b/internal/theme/common/detail.go
@@ -97,6 +97,7 @@ func (d *DetailHandle) Render() {
 	if d.CommentRender == nil {
 		d.CommentRender = plugins.CommentRender()
 	}
+	d.SiteIcon()
 	d.RenderComment()
 	d.CalBodyClass()
 	if d.Templ == "" {
diff --git a/internal/theme/common/index.go b/internal/theme/common/index.go
index 49a0475..a662810 100644
--- a/internal/theme/common/index.go
+++ b/internal/theme/common/index.go
@@ -112,6 +112,7 @@ func (i *IndexHandle) Render() {
 		i.PageEle = plugins.TwentyFifteenPagination()
 	}
 	i.Pagination()
+	i.SiteIcon()
 	i.CalBodyClass()
 	if i.Templ == "" {
 		i.Templ = fmt.Sprintf("%s/posts/index.gohtml", i.Theme)
diff --git a/internal/theme/common/siteicon.go b/internal/theme/common/siteicon.go
new file mode 100644
index 0000000..05b41d6
--- /dev/null
+++ b/internal/theme/common/siteicon.go
@@ -0,0 +1,52 @@
+package common
+
+import (
+	"fmt"
+	"github.com/fthvgb1/wp-go/helper/slice"
+	str "github.com/fthvgb1/wp-go/helper/strings"
+	"github.com/fthvgb1/wp-go/internal/pkg/cache"
+	"github.com/fthvgb1/wp-go/internal/wpconfig"
+	"github.com/fthvgb1/wp-go/safety"
+	"strings"
+)
+
+var icon = safety.NewVar("default")
+var sizes = []string{"site_icon-270", "site_icon-32", "site_icon-192", "site_icon-180"}
+
+func (h *Handle) CalSiteIcon() (r string) {
+	id := str.ToInteger[uint64](wpconfig.Options.Value("site_icon"), 0)
+	if id < 1 {
+		return
+	}
+	icon, err := cache.GetPostById(h.C, id)
+	if err != nil || icon.AttachmentMetadata.File == "" {
+		return
+	}
+	m := strings.Join(strings.Split(icon.AttachmentMetadata.File, "/")[:2], "/")
+	size := slice.FilterAndMap(sizes, func(t string) (string, bool) {
+		s, ok := icon.AttachmentMetadata.Sizes[t]
+		if !ok {
+			return "", false
+		}
+		switch t {
+		case "site_icon-270":
+			return fmt.Sprintf(`<meta name="msapplication-TileImage" content="/wp-content/uploads/%s/%s" />`, m, s.File), true
+		case "site_icon-180":
+			return fmt.Sprintf(`<link rel="apple-touch-icon" href="/wp-content/uploads/%s/%s" />"`, m, s.File), true
+		default:
+			ss := strings.Replace(t, "site_icon-", "", 1)
+			return fmt.Sprintf(`<link rel="icon" href="/wp-content/uploads/%s/%s" sizes="%sx%s" />`, m, s.File, ss, ss), true
+		}
+	})
+	r = strings.Join(size, "\n")
+	return
+}
+
+func (h *Handle) SiteIcon() {
+	s := icon.Load()
+	if s == "default" {
+		s = h.CalSiteIcon()
+		icon.Store(s)
+	}
+	h.GinH["siteIcon"] = s
+}
diff --git a/internal/theme/twentyfifteen/layout/head.gohtml b/internal/theme/twentyfifteen/layout/head.gohtml
index d243e25..9db72e0 100644
--- a/internal/theme/twentyfifteen/layout/head.gohtml
+++ b/internal/theme/twentyfifteen/layout/head.gohtml
@@ -64,4 +64,9 @@
     {{if .customHeader}}
         {{.customHeader|unescaped}}
     {{end}}
+
+    {{if .siteIcon}}
+        {{.siteIcon|unescaped}}
+    {{end}}
+
 {{end}}
\ No newline at end of file