diff --git a/.changeset/crazy-books-kiss.md b/.changeset/crazy-books-kiss.md
new file mode 100644
index 0000000..437d3d1
--- /dev/null
+++ b/.changeset/crazy-books-kiss.md
@@ -0,0 +1,5 @@
+---
+'rsbuild-plugin-react-router': patch
+---
+
+Fix: Correctly expose routeDiscovery configuration for React Router v7 in Rspack builds.
diff --git a/src/index.ts b/src/index.ts
index f7009e8..74f787c 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -97,6 +97,9 @@ export const pluginReactRouter = (
         return {} as Config;
       });
 
+    // Set default routeDiscovery configuration
+    const routeDiscovery = { mode: 'lazy', manifestPath: '/__manifest' } as const;
+
     const routesPath = findEntryFile(resolve(appDirectory, 'routes'));
 
     // Then read the routes
@@ -175,6 +178,7 @@ export const pluginReactRouter = (
         appDirectory,
         ssr,
         federation: options.federation,
+        routeDiscovery,
       }),
       'virtual/react-router/with-props': generateWithProps(),
     });
diff --git a/src/server-utils.ts b/src/server-utils.ts
index 9b47faf..ce4c419 100644
--- a/src/server-utils.ts
+++ b/src/server-utils.ts
@@ -12,6 +12,15 @@ function generateAsyncTemplate(
     basename: string;
     appDirectory: string;
     ssr: boolean;
+    routeDiscovery:
+      | {
+          mode: 'lazy';
+          manifestPath?: string;
+        }
+      | {
+          mode: 'initial';
+        }
+      | undefined;
   }
 ): string {
   return `
@@ -82,6 +91,7 @@ function generateAsyncTemplate(
     export const future = ${JSON.stringify({})};
     export const isSpaMode = ${!options.ssr};
     export const ssr = ${options.ssr};
+    export const routeDiscovery = ${JSON.stringify(options.routeDiscovery)};
     export const publicPath = "/";
     export const prerender = [];
     export const entry = { module: entryServer };
@@ -115,6 +125,15 @@ function generateStaticTemplate(
     basename: string;
     appDirectory: string;
     ssr: boolean;
+    routeDiscovery:
+      | {
+          mode: 'lazy';
+          manifestPath?: string;
+        }
+      | {
+          mode: 'initial';
+        }
+      | undefined;
   }
 ): string {
   return `
@@ -136,6 +155,7 @@ function generateStaticTemplate(
     export const future = ${JSON.stringify({})};
     export const isSpaMode = ${!options.ssr};
     export const ssr = ${options.ssr};
+    export const routeDiscovery = ${JSON.stringify(options.routeDiscovery)};
     export const prerender = [];
     export const publicPath = "/";
     export const entry = { module: entryServer };
@@ -173,6 +193,15 @@ function generateServerBuild(
     appDirectory: string;
     ssr: boolean;
     federation?: boolean;
+    routeDiscovery:
+      | {
+          mode: 'lazy';
+          manifestPath?: string;
+        }
+      | {
+          mode: 'initial';
+        }
+      | undefined;
   }
 ): string {
   return options.federation