diff --git a/layout/_partial/scripts/index.ejs b/layout/_partial/scripts/index.ejs
index 4cd90bb..adc4416 100644
--- a/layout/_partial/scripts/index.ejs
+++ b/layout/_partial/scripts/index.ejs
@@ -61,6 +61,11 @@
 
     // 从 butterfly 和 volantis 获得灵感
     loadScript: (src, opt) => new Promise((resolve, reject) => {
+      // 判断是否存在
+      let el = document.querySelector("script[src='" + src + "']")
+      if (el !== null) {
+        return
+      }
       var script = document.createElement('script')
       script.src = src
       if (opt) {