diff --git a/.changeset/hip-apples-obey.md b/.changeset/hip-apples-obey.md
new file mode 100644
index 0000000000..42766e2de5
--- /dev/null
+++ b/.changeset/hip-apples-obey.md
@@ -0,0 +1,8 @@
+---
+"@lynx-js/web-mainthread-apis": patch
+"@lynx-js/web-worker-runtime": patch
+"@lynx-js/web-constants": patch
+"@lynx-js/web-core": patch
+---
+
+fix: the SystemInfo in bts should be assigned to the globalThis
diff --git a/packages/web-platform/web-constants/src/types/BackThreadStartConfigs.ts b/packages/web-platform/web-constants/src/types/BackThreadStartConfigs.ts
index 09d085726f..1fdb4b2760 100644
--- a/packages/web-platform/web-constants/src/types/BackThreadStartConfigs.ts
+++ b/packages/web-platform/web-constants/src/types/BackThreadStartConfigs.ts
@@ -6,7 +6,6 @@ import type { Cloneable } from './Cloneable.js';
 import type { LynxTemplate } from './LynxModule.js';
 import type { NapiModulesMap } from './NapiModules.js';
 import type { NativeModulesMap } from './NativeModules.js';
-import type { BrowserConfig } from './PageConfig.js';
 
 export interface BackMainThreadContextConfig {
   initData: unknown;
@@ -16,5 +15,4 @@ export interface BackMainThreadContextConfig {
   customSections: Record<string, Cloneable>;
   nativeModulesMap: NativeModulesMap;
   napiModulesMap: NapiModulesMap;
-  browserConfig: BrowserConfig;
 }
diff --git a/packages/web-platform/web-constants/src/utils/generateTemplate.ts b/packages/web-platform/web-constants/src/utils/generateTemplate.ts
index 9f97e58e6d..633e226e9e 100644
--- a/packages/web-platform/web-constants/src/utils/generateTemplate.ts
+++ b/packages/web-platform/web-constants/src/utils/generateTemplate.ts
@@ -79,7 +79,6 @@ const backgroundInjectVars = [
   'globalThis',
   'lynx',
   'lynxCoreInject',
-  'SystemInfo',
 ];
 
 const backgroundInjectWithBind = [
diff --git a/packages/web-platform/web-core/src/uiThread/bootWorkers.ts b/packages/web-platform/web-core/src/uiThread/bootWorkers.ts
index f36707d366..b854d17391 100644
--- a/packages/web-platform/web-core/src/uiThread/bootWorkers.ts
+++ b/packages/web-platform/web-core/src/uiThread/bootWorkers.ts
@@ -2,6 +2,7 @@
 // Licensed under the Apache License Version 2.0 that can be found in the
 // LICENSE file in the root directory of this source tree.
 
+import { systemInfo, type BrowserConfig } from '@lynx-js/web-constants';
 import { Rpc } from '@lynx-js/web-worker-rpc';
 import type { WorkerStartMessage } from '@lynx-js/web-worker-runtime';
 
@@ -16,7 +17,8 @@ const contextIdToBackgroundWorker: (Worker | undefined)[] = [];
 
 export function bootWorkers(
   lynxGroupId: number | undefined,
-  allOnUI?: boolean,
+  allOnUI: boolean,
+  browserConfig: BrowserConfig,
 ): LynxViewRpc {
   let curMainWorker: {
     mainThreadRpc: Rpc;
@@ -31,6 +33,7 @@ export function bootWorkers(
   const curBackgroundWorker = createBackgroundWorker(
     lynxGroupId,
     curMainWorker.channelMainThreadWithBackground,
+    browserConfig,
   );
   if (lynxGroupId !== undefined) {
     if (backgroundWorkerContextCount[lynxGroupId]) {
@@ -97,6 +100,7 @@ function createMainWorker() {
 function createBackgroundWorker(
   lynxGroupId: number | undefined,
   channelMainThreadWithBackground: MessageChannel,
+  browserConfig: BrowserConfig,
 ) {
   const channelToBackground = new MessageChannel();
   let backgroundThreadWorker: Worker;
@@ -111,6 +115,7 @@ function createBackgroundWorker(
     mode: 'background',
     toUIThread: channelToBackground.port2,
     toPeerThread: channelMainThreadWithBackground.port2,
+    systemInfo: { ...systemInfo, ...browserConfig },
   };
   backgroundThreadWorker.postMessage(backgroundThreadMessage, [
     channelToBackground.port2,
diff --git a/packages/web-platform/web-core/src/uiThread/startUIThread.ts b/packages/web-platform/web-core/src/uiThread/startUIThread.ts
index 692e684241..af203875d5 100644
--- a/packages/web-platform/web-core/src/uiThread/startUIThread.ts
+++ b/packages/web-platform/web-core/src/uiThread/startUIThread.ts
@@ -44,7 +44,7 @@ export function startUIThread(
     mainThreadRpc,
     backgroundRpc,
     terminateWorkers,
-  } = bootWorkers(lynxGroupId, allOnUI);
+  } = bootWorkers(lynxGroupId, allOnUI, configs.browserConfig);
   const {
     markTiming,
     sendGlobalEvent,
diff --git a/packages/web-platform/web-mainthread-apis/src/prepareMainThreadAPIs.ts b/packages/web-platform/web-mainthread-apis/src/prepareMainThreadAPIs.ts
index 6c3fbbee0a..84a331183d 100644
--- a/packages/web-platform/web-mainthread-apis/src/prepareMainThreadAPIs.ts
+++ b/packages/web-platform/web-mainthread-apis/src/prepareMainThreadAPIs.ts
@@ -169,7 +169,6 @@ export function prepareMainThreadAPIs(
             ),
             nativeModulesMap,
             napiModulesMap,
-            browserConfig,
           });
           if (!ssrHydrateInfo) {
             mtsGlobalThis.renderPage!(initData);
diff --git a/packages/web-platform/web-worker-runtime/src/backgroundThread/background-apis/createNativeApp.ts b/packages/web-platform/web-worker-runtime/src/backgroundThread/background-apis/createNativeApp.ts
index f5326d71f5..f685e74224 100644
--- a/packages/web-platform/web-worker-runtime/src/backgroundThread/background-apis/createNativeApp.ts
+++ b/packages/web-platform/web-worker-runtime/src/backgroundThread/background-apis/createNativeApp.ts
@@ -11,7 +11,6 @@ import {
   type LynxJSModule,
   type NativeApp,
   type LynxCrossThreadContext,
-  systemInfo,
   type BackMainThreadContextConfig,
   I18nResource,
   reportErrorEndpoint,
@@ -47,7 +46,6 @@ export async function createNativeApp(
     template,
     nativeModulesMap,
     timingSystem,
-    browserConfig,
   } = config;
   const performanceApis = createPerformanceApis(
     timingSystem,
@@ -91,9 +89,6 @@ export async function createNativeApp(
             );
           },
         });
-        Object.assign(lynxCoreInject.tt, {
-          SystemInfo: { ...systemInfo, ...browserConfig },
-        });
         const ret = entry?.(lynxCoreInject.tt);
         return ret;
       },
diff --git a/packages/web-platform/web-worker-runtime/src/global.d.ts b/packages/web-platform/web-worker-runtime/src/global.d.ts
new file mode 100644
index 0000000000..3063474c8f
--- /dev/null
+++ b/packages/web-platform/web-worker-runtime/src/global.d.ts
@@ -0,0 +1,6 @@
+declare global {
+  var SystemInfo: Record<string, any> | undefined;
+  var module: { exports: any };
+}
+
+export {};
diff --git a/packages/web-platform/web-worker-runtime/src/index.ts b/packages/web-platform/web-worker-runtime/src/index.ts
index b6b970da23..80ff6c2028 100644
--- a/packages/web-platform/web-worker-runtime/src/index.ts
+++ b/packages/web-platform/web-worker-runtime/src/index.ts
@@ -8,11 +8,15 @@ export interface WorkerStartMessage {
   mode: 'main' | 'background';
   toPeerThread: MessagePort;
   toUIThread: MessagePort;
+  systemInfo?: Record<string, any>;
 }
 
 globalThis.onmessage = async (ev) => {
-  const { mode, toPeerThread, toUIThread } = ev
+  const { mode, toPeerThread, toUIThread, systemInfo } = ev
     .data as WorkerStartMessage;
+  if (!globalThis.SystemInfo) {
+    globalThis.SystemInfo = systemInfo;
+  }
   if (mode === 'main') {
     const { startMainThreadWorker } = await import(
       /* webpackChunkName: "web-worker-runtime-main-thread" */