diff --git a/packages/plugin-declaration-generator/src/index.ts b/packages/plugin-declaration-generator/src/index.ts
index 914a3348..33d46eec 100644
--- a/packages/plugin-declaration-generator/src/index.ts
+++ b/packages/plugin-declaration-generator/src/index.ts
@@ -3,7 +3,7 @@ import traverse from '@babel/traverse';
 import generate from '@babel/generator';
 import template from '@babel/template';
 import type { Comment } from '@babel/types';
-import { program } from '@babel/types';
+import { program, isFunctionDeclaration } from '@babel/types';
 import fs from 'fs-extra';
 import _ from 'lodash';
 
@@ -47,7 +47,7 @@ function getSourceCodeExportedFunction(sourcecode: string): ExportedItem[] {
   traverse(ast, {
     ExportNamedDeclaration({ node }) {
       if (node.declaration) {
-        if (node.declaration.type === 'FunctionDeclaration') {
+        if (isFunctionDeclaration(node.declaration)) {
           const name = node.declaration.id?.name;
           if (typeof name === 'string') {
             exported.push({
diff --git a/packages/plugin-declaration-generator/src/tsgenerator.ts b/packages/plugin-declaration-generator/src/tsgenerator.ts
index 27d0d3a5..8db8a2c1 100644
--- a/packages/plugin-declaration-generator/src/tsgenerator.ts
+++ b/packages/plugin-declaration-generator/src/tsgenerator.ts
@@ -10,14 +10,44 @@ interface ExportModuleItem {
   comment?: string;
 }
 
+export function parseModuleDeclaration(
+  filePath: string,
+  options: ts.CompilerOptions
+) {
+  const program = parseFile(filePath, options);
+  const modules: Record<string, any[]> = {};
+
+  const sourceFile = program?.getSourceFile(filePath);
+  sourceFile?.forEachChild((node) => {
+    if (
+      ts.isModuleDeclaration(node) &&
+      node.body &&
+      ts.isModuleBlock(node.body)
+    ) {
+      const moduleName = node.name.text;
+      if (!modules[moduleName]) {
+        modules[moduleName] = [];
+      }
+
+      node.body.forEachChild((item) => {
+        if (ts.isVariableStatement(item)) {
+          item.declarationList.declarations.forEach((declaration) => {
+            const name = declaration.name.getText();
+            modules[moduleName].push(name);
+          });
+        }
+      });
+    }
+  });
+
+  return { modules };
+}
+
 /**
- * 解析文件
+ * 解析导出文件
  */
-export function parseFile(filePath: string, options: ts.CompilerOptions) {
-  const host = new FileServiceHost(filePath, options);
-
-  const service = ts.createLanguageService(host, ts.createDocumentRegistry());
-  const program = service.getProgram();
+export function parseExports(filePath: string, options: ts.CompilerOptions) {
+  const program = parseFile(filePath, options);
 
   const exportModules: ExportModuleItem[] = [];
   const sourceFile = program?.getSourceFile(filePath);
@@ -46,6 +76,18 @@ export function parseFile(filePath: string, options: ts.CompilerOptions) {
   return { exportModules };
 }
 
+/**
+ * 解析文件
+ */
+export function parseFile(filePath: string, options: ts.CompilerOptions) {
+  const host = new FileServiceHost(filePath, options);
+
+  const service = ts.createLanguageService(host, ts.createDocumentRegistry());
+  const program = service.getProgram();
+
+  return program;
+}
+
 function isExportFunc(node: ts.Node): node is ts.FunctionDeclaration {
   if (ts.isFunctionDeclaration(node)) {
     if (node.modifiers) {
diff --git a/packages/plugin-declaration-generator/test/index.d.ts b/packages/plugin-declaration-generator/test/index.d.ts
new file mode 100644
index 00000000..b11ae915
--- /dev/null
+++ b/packages/plugin-declaration-generator/test/index.d.ts
@@ -0,0 +1,4 @@
+declare module '@capital/foo' {
+  export const a: any;
+  export const b: any;
+}
diff --git a/packages/plugin-declaration-generator/test/index.ts b/packages/plugin-declaration-generator/test/index.ts
index 89f01bbd..c1bb3362 100644
--- a/packages/plugin-declaration-generator/test/index.ts
+++ b/packages/plugin-declaration-generator/test/index.ts
@@ -1,11 +1,20 @@
-import { parseFile } from '../src/tsgenerator';
+import { parseExports, parseModuleDeclaration } from '../src/tsgenerator';
 import path from 'path';
 
-const { exportModules } = parseFile(
+const { exportModules } = parseExports(
   path.resolve(__dirname, './demo/index.ts'),
   {
     paths: { '@/*': ['./*'] },
   }
 );
 
-console.log(exportModules);
+console.log('exportModules', exportModules);
+
+const { modules } = parseModuleDeclaration(
+  path.resolve(__dirname, './index.d.ts'),
+  {
+    paths: { '@/*': ['./*'] },
+  }
+);
+
+console.log('modules', modules);