diff --git a/plugin/tegg/lib/EggModuleLoader.ts b/plugin/tegg/lib/EggModuleLoader.ts
index afee5f5c..619e2116 100644
--- a/plugin/tegg/lib/EggModuleLoader.ts
+++ b/plugin/tegg/lib/EggModuleLoader.ts
@@ -18,6 +18,13 @@ export class EggModuleLoader {
 
   private buildAppGraph(loaderCache: Map<string, Loader>) {
     const appGraph = new AppGraph();
+    for (const plugin of Object.values(this.app.plugins)) {
+      if (!plugin.enable) continue;
+      const modulePlugin = this.app.moduleReferences.find(t => t.path === plugin.path);
+      if (modulePlugin) {
+        modulePlugin.optional = false;
+      }
+    }
     for (const moduleConfig of this.app.moduleReferences) {
       const modulePath = moduleConfig.path;
       const moduleNode = new ModuleNode(moduleConfig);
diff --git a/plugin/tegg/test/OptionalPluginModule.test.ts b/plugin/tegg/test/OptionalPluginModule.test.ts
new file mode 100644
index 00000000..2fb0a3c3
--- /dev/null
+++ b/plugin/tegg/test/OptionalPluginModule.test.ts
@@ -0,0 +1,36 @@
+import mm from 'egg-mock';
+import assert from 'assert';
+import path from 'path';
+import { UsedProto } from './fixtures/apps/plugin-module/node_modules/foo-plugin/Used';
+
+describe('test/OptionalPluginModule.test.ts', () => {
+  let app;
+  const fixtureDir = path.join(__dirname, 'fixtures/apps/plugin-module');
+
+  after(async () => {
+    await app.close();
+  });
+
+  afterEach(() => {
+    mm.restore();
+  });
+
+  before(async () => {
+    mm(process.env, 'EGG_TYPESCRIPT', true);
+    mm(process, 'cwd', () => {
+      return path.join(__dirname, '..');
+    });
+    app = mm.app({
+      baseDir: fixtureDir,
+      framework: require.resolve('egg'),
+    });
+    await app.ready();
+  });
+
+  it('should work', async () => {
+    await app.mockModuleContextScope(async ctx => {
+      const usedProto = await ctx.getEggObject(UsedProto);
+      assert(usedProto);
+    });
+  });
+});
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/config/config.default.js b/plugin/tegg/test/fixtures/apps/plugin-module/config/config.default.js
new file mode 100644
index 00000000..6d1b8de5
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/config/config.default.js
@@ -0,0 +1,20 @@
+'use strict';
+
+const path = require('path');
+
+module.exports = function(appInfo) {
+  const config = {
+    keys: 'test key',
+    customLogger: {
+      xxLogger: {
+        file: path.join(appInfo.root, 'logs/xx.log'),
+      },
+    },
+    security: {
+      csrf: {
+        ignoreJSON: false,
+      }
+    },
+  };
+  return config;
+};
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/config/plugin.js b/plugin/tegg/test/fixtures/apps/plugin-module/config/plugin.js
new file mode 100644
index 00000000..e76785e8
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/config/plugin.js
@@ -0,0 +1,18 @@
+'use strict';
+
+exports.tracer = {
+  package: 'egg-tracer',
+  enable: true,
+};
+
+exports.teggConfig = {
+  package: '@eggjs/tegg-config',
+  enable: true,
+};
+
+exports.eggFooPlugin = {
+  package: 'foo-plugin',
+  enable: true,
+};
+
+exports.watcher = false;
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/Used.js b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/Used.js
new file mode 100644
index 00000000..2bb8c288
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/Used.js
@@ -0,0 +1,18 @@
+"use strict";
+var __decorate = (this && this.__decorate) || function (decorators, target, key, desc) {
+    var c = arguments.length, r = c < 3 ? target : desc === null ? desc = Object.getOwnPropertyDescriptor(target, key) : desc, d;
+    if (typeof Reflect === "object" && typeof Reflect.decorate === "function") r = Reflect.decorate(decorators, target, key, desc);
+    else for (var i = decorators.length - 1; i >= 0; i--) if (d = decorators[i]) r = (c < 3 ? d(r) : c > 3 ? d(target, key, r) : d(target, key)) || r;
+    return c > 3 && r && Object.defineProperty(target, key, r), r;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.UsedProto = void 0;
+const tegg_core_decorator_1 = require('../../../../../../../../core/core-decorator');
+let UsedProto = class UsedProto {
+};
+exports.UsedProto = UsedProto;
+exports.UsedProto = UsedProto = __decorate([
+    (0, tegg_core_decorator_1.SingletonProto)({
+        accessLevel: tegg_core_decorator_1.AccessLevel.PUBLIC,
+    })
+], UsedProto);
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/package.json b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/package.json
new file mode 100644
index 00000000..f0ff1764
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo-plugin/package.json
@@ -0,0 +1,9 @@
+{
+  "name": "egg-foo-plugin",
+  "eggPlugin": {
+    "name": "eggFooPlugin"
+  },
+  "eggModule": {
+    "name": "eggFooPlugin"
+  }
+}
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo/package.json b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo/package.json
new file mode 100644
index 00000000..05c96aaa
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/node_modules/foo/package.json
@@ -0,0 +1,6 @@
+{
+  "name": "foo",
+  "dependencies": {
+    "foo-plugin": "*"
+  }
+}
diff --git a/plugin/tegg/test/fixtures/apps/plugin-module/package.json b/plugin/tegg/test/fixtures/apps/plugin-module/package.json
new file mode 100644
index 00000000..3b868a43
--- /dev/null
+++ b/plugin/tegg/test/fixtures/apps/plugin-module/package.json
@@ -0,0 +1,6 @@
+{
+  "name": "egg-app",
+  "egg": {
+    "framework": "foo"
+  }
+}