diff --git a/docs/en/install/README.md b/docs/en/install/README.md
index b61260062..4b97f5e1b 100644
--- a/docs/en/install/README.md
+++ b/docs/en/install/README.md
@@ -494,6 +494,7 @@ See docs of specified route and `lib/config.js` for detail information.
 
     -   `IG_USERNAME`: Your Instagram username
     -   `IG_PASSWORD`: Your Instagram password
+    -   `IG_PROXY`: Proxy URL for Instagram
 
     Warning: Two Factor Authentication is *not* supported.
 
diff --git a/docs/install/README.md b/docs/install/README.md
index a8c59fa91..b2df770d4 100644
--- a/docs/install/README.md
+++ b/docs/install/README.md
@@ -603,6 +603,7 @@ RSSHub 支持使用访问密钥 / 码，白名单和黑名单三种方式进行
 
     -   `IG_USERNAME`: Instagram 用户名。
     -   `IG_PASSWORD`: Instagram 密码。
+    -   `IG_PROXY`: Instagram 代理URL。
 
     注意，暂不支持两步验证。
 
diff --git a/lib/routes/instagram/index.js b/lib/routes/instagram/index.js
index 4aafe4a71..504a1f611 100644
--- a/lib/routes/instagram/index.js
+++ b/lib/routes/instagram/index.js
@@ -15,13 +15,17 @@ module.exports = async (ctx) => {
         throw Error('Such feed is not supported.');
     }
 
+    if (process.env.IG_PROXY) {
+        ig.state.proxyUrl = process.env.IG_PROXY;
+    }
+
     try {
         await ig.account.currentUser();
     } catch (e) {
         if (e instanceof IgLoginRequiredError) {
             await login(ig);
         } else {
-            throw Error('Unknown error');
+            throw e;
         }
     }