diff --git a/utils/tools/SearchImageTool.js b/utils/tools/SearchImageTool.js
index d929d4f..78d2998 100644
--- a/utils/tools/SearchImageTool.js
+++ b/utils/tools/SearchImageTool.js
@@ -12,14 +12,18 @@ export class SerpImageTool extends AbstractTool {
       limit: {
         type: 'number',
         description: 'image number'
+      },
+      source: {
+        type: 'string',
+        description: 'search source, bing or yandex'
       }
     },
     required: ['q']
   }
 
   func = async function (opts) {
-    let { q, limit = 2 } = opts
-    let serpRes = await fetch(`https://serp.ikechan8370.com/image/bing?q=${encodeURIComponent(q)}&limit=${limit}`, {
+    let { q, limit = 2, source = 'bing' } = opts
+    let serpRes = await fetch(`https://serp.ikechan8370.com/${source}/bing?q=${encodeURIComponent(q)}&limit=${limit}`, {
       headers: {
         'X-From-Library': 'ikechan8370'
       }