diff --git a/compiler/main.js b/compiler/main.js
index 9c3b6c5..95ddcc0 100644
--- a/compiler/main.js
+++ b/compiler/main.js
@@ -46,6 +46,8 @@ const resources = {
 };
 const abilityPagesFullPath = [];
 
+const systemModules = [];
+
 function initProjectConfig(projectConfig) {
   projectConfig.entryObj = {};
   projectConfig.projectPath = projectConfig.projectPath || process.env.aceModuleRoot ||
@@ -304,6 +306,13 @@ function filterWorker(workerPath) {
   }
 })()
 
+;(function readSystemModules() {
+  const systemModulesPath = path.resolve(__dirname,'../../api');
+  if (fs.existsSync(systemModulesPath)) {
+    systemModules.push(...fs.readdirSync(systemModulesPath));
+  }
+})()
+
 function readAppResource(resources, filePath) {
   if (fs.existsSync(filePath)) {
     const appResource = fs.readFileSync(filePath, "utf-8");
@@ -374,3 +383,4 @@ exports.abilityConfig = abilityConfig;
 exports.readWorkerFile = readWorkerFile;
 exports.abilityPagesFullPath = abilityPagesFullPath;
 exports.loadModuleInfo = loadModuleInfo;
+exports.systemModules = systemModules;
diff --git a/compiler/src/ets_checker.ts b/compiler/src/ets_checker.ts
index f976be3..5af515f 100644
--- a/compiler/src/ets_checker.ts
+++ b/compiler/src/ets_checker.ts
@@ -17,7 +17,10 @@ import fs from 'fs';
 import path from 'path';
 import * as ts from 'typescript';
 
-import { projectConfig } from '../main';
+import {
+  projectConfig,
+  systemModules
+} from '../main';
 import {
   processSystemApi,
   preprocessExtend,
@@ -140,9 +143,9 @@ function resolveModuleNames(moduleNames: string[], containingFile: string): ts.R
       } else {
         resolvedModules.push(null);
       }
-    } else if (/^@(system|ohos)/.test(moduleName.trim())) {
+    } else if (/^@(system|ohos)/i.test(moduleName.trim())) {
       const modulePath: string = path.resolve(__dirname, '../../../api', moduleName + '.d.ts');
-      if (ts.sys.fileExists(modulePath)) {
+      if (systemModules.includes(moduleName + '.d.ts') && ts.sys.fileExists(modulePath)) {
         resolvedModules.push(getResolveModule(modulePath, '.d.ts'));
       } else {
         resolvedModules.push(null);