diff --git a/packages/rspack-test-tools/tests/__snapshots__/Defaults.test.js.snap b/packages/rspack-test-tools/tests/__snapshots__/Defaults.test.js.snap
index 8b19879a4ea..94a15931693 100644
--- a/packages/rspack-test-tools/tests/__snapshots__/Defaults.test.js.snap
+++ b/packages/rspack-test-tools/tests/__snapshots__/Defaults.test.js.snap
@@ -374,7 +374,7 @@ Object {
     "pathinfo": false,
     "publicPath": "auto",
     "scriptType": false,
-    "sourceMapFilename": "[file].map",
+    "sourceMapFilename": "[file].map[query]",
     "strictModuleErrorHandling": false,
     "trustedTypes": undefined,
     "uniqueName": "@rspack/test-tools",
diff --git a/packages/rspack/scripts/check-documentation-coverage.mjs b/packages/rspack/scripts/check-documentation-coverage.mjs
index 760a279eaf4..f3a6db9e242 100644
--- a/packages/rspack/scripts/check-documentation-coverage.mjs
+++ b/packages/rspack/scripts/check-documentation-coverage.mjs
@@ -262,7 +262,6 @@ function checkConfigsDocumentationCoverage() {
 			"output.workerWasmLoading",
 			"output.workerPublicPath",
 			"output.strictModuleExceptionHandling",
-			"output.sourceMapFilename",
 
 			"stats",
 
diff --git a/packages/rspack/src/config/defaults.ts b/packages/rspack/src/config/defaults.ts
index 7a724bcaa07..a615741df71 100644
--- a/packages/rspack/src/config/defaults.ts
+++ b/packages/rspack/src/config/defaults.ts
@@ -720,10 +720,7 @@ const applyOutputDefaults = (
 	F(output, "clean", () => !!output.clean);
 	D(output, "crossOriginLoading", false);
 	D(output, "workerPublicPath", "");
-	// IGNORE(output.sourceMapFilename): In webpack, sourceMapFilename is [file].map[query] by default
-	F(output, "sourceMapFilename", () => {
-		return "[file].map";
-	});
+	D(output, "sourceMapFilename", "[file].map[query]");
 	F(output, "scriptType", () => (output.module ? "module" : false));
 
 	const { trustedTypes } = output;
diff --git a/website/docs/en/config/output.mdx b/website/docs/en/config/output.mdx
index e87d5a36ed6..54bc422d95c 100644
--- a/website/docs/en/config/output.mdx
+++ b/website/docs/en/config/output.mdx
@@ -446,6 +446,15 @@ module.exports = {
 };
 ```
 
+## output.sourceMapFilename
+
+- **Type:** `string`
+- **Default:** `'[file].map[query]'`
+
+Configure how source maps are named. Only takes effect when [`devtool`](/config/devtool) is set to `'source-map'`, which writes an output file.
+
+The `[name]`, `[id]`, `[fullhash]` and `[chunkhash]` substitutions from [`output.filename`](#outputfilename) can be used. In addition to those, you can use substitutions listed under Filename-level in [Template strings](#template-string).
+
 ## output.strictModuleErrorHandling
 
 - **Type:** `boolean`
diff --git a/website/docs/zh/config/output.mdx b/website/docs/zh/config/output.mdx
index 697b179c246..0ab9f240e94 100644
--- a/website/docs/zh/config/output.mdx
+++ b/website/docs/zh/config/output.mdx
@@ -197,7 +197,7 @@ module.exports = {
 
 ## output.devtoolFallbackModuleFilenameTemplate
 
-- **Type:** `string` | `function (info)`
+- **类型：** `string` | `function (info)`
 
 当模板字符串或函数产生重复时使用的备用内容。
 
@@ -205,7 +205,7 @@ module.exports = {
 
 ## output.devtoolModuleFilenameTemplate
 
-- **Type:** `string = 'webpack://[namespace]/[resource-path]?[loaders]'` | `function (info) => string`
+- **类型：** `string = 'webpack://[namespace]/[resource-path]?[loaders]'` | `function (info) => string`
 
 此选项仅在 [`devtool`](/config/devtool.html) 使用了需要模块名称的选项时使用。
 
@@ -428,8 +428,8 @@ import './others.js';
 
 ## output.scriptType
 
-- **Type:** `'module' | 'text/javascript' | boolean`
-- **Default:** `false`
+- **类型：** `'module' | 'text/javascript' | boolean`
+- **默认值：** `false`
 
 该选项允许使用自定义脚本类型（例如 `<script type="module" ...>`）来加载异步块。
 
@@ -446,6 +446,15 @@ module.exports = {
 };
 ```
 
+## output.sourceMapFilename
+
+- **类型：** `string`
+- **默认值：** `'[file].map[query]'`
+
+配置 source map 文件的命名方式。仅当 [`devtool`](/config/devtool) 设置为 `'source-map'` 时生效，此时会输出文件。
+
+可以使用 [`output.filename`](#outputfilename) 中的 `[name]`、`[id]`、`[fullhash]` 和 `[chunkhash]` 替换符。此外，还可以使用 [Template strings](#template-string) 中在文件级别列出的替换符。
+
 ## output.strictModuleErrorHandling
 
 - **类型：** `boolean`