diff --git a/backend/package.json b/backend/package.json
index 0c9bffa..0721ed3 100644
--- a/backend/package.json
+++ b/backend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "sub-store",
-  "version": "2.14.104",
+  "version": "2.14.105",
   "description": "Advanced Subscription Manager for QX, Loon, Surge, Stash and ShadowRocket.",
   "main": "src/main.js",
   "scripts": {
diff --git a/backend/src/restful/download.js b/backend/src/restful/download.js
index d729786..6a9e4c8 100644
--- a/backend/src/restful/download.js
+++ b/backend/src/restful/download.js
@@ -20,18 +20,22 @@ async function downloadSubscription(req, res) {
         req.query.target || getPlatformFromHeaders(req.headers) || 'JSON';
 
     $.info(`正在下载订阅：${name}`);
-    let { url, ua, content } = req.query;
+    let { url, ua, content, mergeSources } = req.query;
     if (url) {
         url = decodeURIComponent(url);
-        $.info(`指定 url: ${url}`);
+        $.info(`指定远程订阅 URL: ${url}`);
     }
     if (ua) {
         ua = decodeURIComponent(ua);
-        $.info(`指定 ua: ${ua}`);
+        $.info(`指定远程订阅 User-Agent: ${ua}`);
     }
     if (content) {
         content = decodeURIComponent(content);
-        $.info(`指定 content: ${content}`);
+        $.info(`指定本地订阅: ${content}`);
+    }
+    if (mergeSources) {
+        mergeSources = decodeURIComponent(mergeSources);
+        $.info(`指定合并来源: ${mergeSources}`);
     }
 
     const allSubs = $.read(SUBS_KEY);
@@ -45,6 +49,7 @@ async function downloadSubscription(req, res) {
                 url,
                 ua,
                 content,
+                mergeSources,
             });
 
             if (sub.source !== 'local' || url) {
diff --git a/backend/src/restful/preview.js b/backend/src/restful/preview.js
index 97d1b50..68896ec 100644
--- a/backend/src/restful/preview.js
+++ b/backend/src/restful/preview.js
@@ -16,7 +16,10 @@ async function compareSub(req, res) {
         const sub = req.body;
         const target = req.query.target || 'JSON';
         let content;
-        if (sub.source === 'local') {
+        if (
+            sub.source === 'local' &&
+            !['localFirst', 'remoteFirst'].includes(sub.mergeSources)
+        ) {
             content = sub.content;
         } else {
             try {
@@ -38,6 +41,11 @@ async function compareSub(req, res) {
                 );
                 return;
             }
+            if (sub.mergeSources === 'localFirst') {
+                content.unshift(sub.content);
+            } else if (sub.mergeSources === 'remoteFirst') {
+                content.push(sub.content);
+            }
         }
         // parse proxies
         const original = (Array.isArray(content) ? content : [content])
@@ -85,7 +93,12 @@ async function compareCollection(req, res) {
                 const sub = findByName(allSubs, name);
                 try {
                     let raw;
-                    if (sub.source === 'local') {
+                    if (
+                        sub.source === 'local' &&
+                        !['localFirst', 'remoteFirst'].includes(
+                            sub.mergeSources,
+                        )
+                    ) {
                         raw = sub.content;
                     } else {
                         raw = await Promise.all(
@@ -95,6 +108,11 @@ async function compareCollection(req, res) {
                                 .filter((i) => i.length)
                                 .map((url) => download(url, sub.ua)),
                         );
+                        if (sub.mergeSources === 'localFirst') {
+                            raw.unshift(sub.content);
+                        } else if (sub.mergeSources === 'remoteFirst') {
+                            raw.push(sub.content);
+                        }
                     }
                     // parse proxies
                     let currentProxies = (Array.isArray(raw) ? raw : [raw])
diff --git a/backend/src/restful/sync.js b/backend/src/restful/sync.js
index d860746..c80fe39 100644
--- a/backend/src/restful/sync.js
+++ b/backend/src/restful/sync.js
@@ -22,14 +22,24 @@ export default function register($app) {
     $app.get('/api/sync/artifact/:name', syncArtifact);
 }
 
-async function produceArtifact({ type, name, platform, url, ua, content }) {
+async function produceArtifact({
+    type,
+    name,
+    platform,
+    url,
+    ua,
+    content,
+    mergeSources,
+}) {
     platform = platform || 'JSON';
 
     if (type === 'subscription') {
         const allSubs = $.read(SUBS_KEY);
         const sub = findByName(allSubs, name);
         let raw;
-        if (url) {
+        if (content && !['localFirst', 'remoteFirst'].includes(mergeSources)) {
+            raw = content;
+        } else if (url) {
             raw = await Promise.all(
                 url
                     .split(/[\r\n]+/)
@@ -37,9 +47,15 @@ async function produceArtifact({ type, name, platform, url, ua, content }) {
                     .filter((i) => i.length)
                     .map((url) => download(url, ua)),
             );
-        } else if (content) {
-            raw = content;
-        } else if (sub.source === 'local') {
+            if (mergeSources === 'localFirst') {
+                raw.unshift(content);
+            } else if (mergeSources === 'remoteFirst') {
+                raw.push(content);
+            }
+        } else if (
+            sub.source === 'local' &&
+            !['localFirst', 'remoteFirst'].includes(sub.mergeSources)
+        ) {
             raw = sub.content;
         } else {
             raw = await Promise.all(
@@ -49,6 +65,11 @@ async function produceArtifact({ type, name, platform, url, ua, content }) {
                     .filter((i) => i.length)
                     .map((url) => download(url, sub.ua)),
             );
+            if (sub.mergeSources === 'localFirst') {
+                raw.unshift(sub.content);
+            } else if (sub.mergeSources === 'remoteFirst') {
+                raw.push(sub.content);
+            }
         }
         // parse proxies
         let proxies = (Array.isArray(raw) ? raw : [raw])
@@ -102,7 +123,12 @@ async function produceArtifact({ type, name, platform, url, ua, content }) {
                 try {
                     $.info(`正在处理子订阅：${sub.name}...`);
                     let raw;
-                    if (sub.source === 'local') {
+                    if (
+                        sub.source === 'local' &&
+                        !['localFirst', 'remoteFirst'].includes(
+                            sub.mergeSources,
+                        )
+                    ) {
                         raw = sub.content;
                     } else {
                         raw = await await Promise.all(
@@ -112,6 +138,11 @@ async function produceArtifact({ type, name, platform, url, ua, content }) {
                                 .filter((i) => i.length)
                                 .map((url) => download(url, sub.ua)),
                         );
+                        if (sub.mergeSources === 'localFirst') {
+                            raw.unshift(sub.content);
+                        } else if (sub.mergeSources === 'remoteFirst') {
+                            raw.push(sub.content);
+                        }
                     }
                     // parse proxies
                     let currentProxies = (Array.isArray(raw) ? raw : [raw])