diff --git a/exampleSite/config/_default/params.toml b/exampleSite/config/_default/params.toml
index 2d7b955..3076cf9 100644
--- a/exampleSite/config/_default/params.toml
+++ b/exampleSite/config/_default/params.toml
@@ -97,6 +97,7 @@ enableThemeChange = true
 
 # service
 googleTagManager = "" # GTM-XXXXXX
+googleRecaptcha = "" #add your site key here example "6LesNi8aAAAAAGfQ6mXSkFJIVTpDpywrUUHTdx87"
 baiduAnalytics = ""
 enableBusuanzi = false
 busuanziSiteUV = true
diff --git a/layouts/partials/head/services.html b/layouts/partials/head/services.html
index 7cfed30..aa5c133 100644
--- a/layouts/partials/head/services.html
+++ b/layouts/partials/head/services.html
@@ -1,4 +1,5 @@
 {{ partial "service/google-analytics" . }}
+{{ partial "service/google-recaptcha" . }}
 {{ partial "service/google-tag-manager" . }}
 {{ partial "service/baidu-analytics" . }}
 {{ partial "service/busuanzi" . }}
\ No newline at end of file
diff --git a/layouts/partials/service/google-recaptcha.html b/layouts/partials/service/google-recaptcha.html
new file mode 100644
index 0000000..93cde90
--- /dev/null
+++ b/layouts/partials/service/google-recaptcha.html
@@ -0,0 +1,3 @@
+{{ if $.Site.Params.googleRecaptcha }}
+    <script src="https://www.google.com/recaptcha/api.js?render={{ $.Site.Params.googleRecaptcha }}"></script>
+{{ end }}
\ No newline at end of file