diff --git a/backend/package.json b/backend/package.json
index c2cb12486..de6ccf9ff 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.70",
+  "version": "2.14.71",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/core/proxy-utils/parsers/peggy/surge.js b/backend/src/core/proxy-utils/parsers/peggy/surge.js
index 78bb5e865..ba8ca262c 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/surge.js
+++ b/backend/src/core/proxy-utils/parsers/peggy/surge.js
@@ -86,7 +86,7 @@ tuic_v5 = tag equals "tuic-v5" address (alpn/passwordk/uuidk/ip_version/tls_veri
 wireguard = tag equals "wireguard" (section_name/no_error_alert/ip_version/underlying_proxy/test_url/others)* {
     proxy.type = "wireguard-surge";
 }
-hysteria2 = tag equals "hysteria2" address (no_error_alert/ip_version/underlying_proxy/test_url/sni/tls_verification/passwordk/download_bandwidth/others)* {
+hysteria2 = tag equals "hysteria2" address (no_error_alert/ip_version/underlying_proxy/test_url/sni/tls_verification/passwordk/download_bandwidth/ecn/others)* {
     proxy.type = "hysteria2";
 }
 socks5 = tag equals "socks5" address (username password)? (fast_open/others)* {
diff --git a/backend/src/core/proxy-utils/parsers/peggy/surge.peg b/backend/src/core/proxy-utils/parsers/peggy/surge.peg
index 9b1edf7fa..6a1255402 100644
--- a/backend/src/core/proxy-utils/parsers/peggy/surge.peg
+++ b/backend/src/core/proxy-utils/parsers/peggy/surge.peg
@@ -84,7 +84,7 @@ tuic_v5 = tag equals "tuic-v5" address (alpn/passwordk/uuidk/ip_version/tls_veri
 wireguard = tag equals "wireguard" (section_name/no_error_alert/ip_version/underlying_proxy/test_url/others)* {
     proxy.type = "wireguard-surge";
 }
-hysteria2 = tag equals "hysteria2" address (no_error_alert/ip_version/underlying_proxy/test_url/sni/tls_verification/passwordk/download_bandwidth/others)* {
+hysteria2 = tag equals "hysteria2" address (no_error_alert/ip_version/underlying_proxy/test_url/sni/tls_verification/passwordk/download_bandwidth/ecn/others)* {
     proxy.type = "hysteria2";
 }
 socks5 = tag equals "socks5" address (username password)? (fast_open/others)* {
diff --git a/backend/src/core/proxy-utils/producers/surge.js b/backend/src/core/proxy-utils/producers/surge.js
index 966d50836..127a27e2e 100644
--- a/backend/src/core/proxy-utils/producers/surge.js
+++ b/backend/src/core/proxy-utils/producers/surge.js
@@ -417,6 +417,8 @@ function hysteria2(proxy) {
         'down',
     );
 
+    result.appendIfPresent(`,ecn=${proxy.ecn}`, 'ecn');
+
     return result.toString();
 }