diff --git a/src/common/base64.ts b/src/common/base64.ts
index 828db54..92da7d4 100644
--- a/src/common/base64.ts
+++ b/src/common/base64.ts
@@ -1 +1,3 @@
 export const encodeBase64 = (str: string) => Buffer.from(str, 'utf-8').toString('base64');
+
+export const encodeBase64ForRosId = (str: string) => encodeBase64(str).replace(/=+$/, '');
diff --git a/src/parser/bucketParser.ts b/src/parser/bucketParser.ts
index a6ce9ca..34b4175 100644
--- a/src/parser/bucketParser.ts
+++ b/src/parser/bucketParser.ts
@@ -25,6 +25,7 @@ export const parseBucket = (buckets: {
     website: bucket.website
       ? {
           code: bucket.website.code,
+          domain: bucket.website.domain,
           index: bucket.website.index ?? 'index.html',
           error_page: bucket.website.error_page ?? '404.html',
           error_code: bucket.website.error_code ?? 404,
diff --git a/src/stack/rosStack/bucket.ts b/src/stack/rosStack/bucket.ts
index ac63102..9f618b9 100644
--- a/src/stack/rosStack/bucket.ts
+++ b/src/stack/rosStack/bucket.ts
@@ -1,7 +1,7 @@
 import { ActionContext, BucketAccessEnum, BucketDomain } from '../../types';
 import * as oss from '@alicloud/ros-cdk-oss';
 import * as ros from '@alicloud/ros-cdk-core';
-import { getAssets, replaceReference } from '../../common';
+import { encodeBase64ForRosId, getAssets, replaceReference } from '../../common';
 import * as ossDeployment from '@alicloud/ros-cdk-ossdeployment';
 import path from 'node:path';
 import { RosRole } from '@alicloud/ros-cdk-ram';
@@ -86,5 +86,15 @@ export const resolveBuckets = (
         true,
       );
     }
+    if (bucket.website?.domain) {
+      new oss.Domain(
+        scope,
+        `${bucket.key}_custom_domain_${encodeBase64ForRosId(bucket.website.domain)}`,
+        {
+          bucketName: ossBucket.attrName,
+          domainName: replaceReference(bucket.website.domain, context),
+        },
+      );
+    }
   });
 };
diff --git a/src/stack/rosStack/event.ts b/src/stack/rosStack/event.ts
index 9805c61..afb6b91 100644
--- a/src/stack/rosStack/event.ts
+++ b/src/stack/rosStack/event.ts
@@ -1,7 +1,7 @@
 import * as ros from '@alicloud/ros-cdk-core';
 import { ActionContext, EventDomain, EventTypes, ServerlessIac } from '../../types';
 import * as ram from '@alicloud/ros-cdk-ram';
-import { encodeBase64, replaceReference } from '../../common';
+import { encodeBase64ForRosId, replaceReference } from '../../common';
 import * as agw from '@alicloud/ros-cdk-apigateway';
 import { isEmpty } from 'lodash';
 
@@ -81,9 +81,9 @@ export const resolveEvents = (
 
     apiGateway.forEach((event) => {
       event.triggers.forEach((trigger) => {
-        const key = encodeBase64(
+        const key = encodeBase64ForRosId(
           replaceReference(`${trigger.method}_${trigger.path}`, context),
-        ).replace(/=+$/, '');
+        );
 
         const api = new agw.RosApi(
           scope,
diff --git a/src/types/domains/bucket.ts b/src/types/domains/bucket.ts
index 70730bd..cb42ca7 100644
--- a/src/types/domains/bucket.ts
+++ b/src/types/domains/bucket.ts
@@ -15,6 +15,7 @@ export type BucketRaw = {
   };
   website?: {
     code: string;
+    domain?: string;
     index?: string;
     error_page?: string;
     error_code?: number;
@@ -45,6 +46,7 @@ export type BucketDomain = {
   };
   website?: {
     index: string;
+    domain?: string;
     code: string;
     error_page: string;
     error_code: number;
diff --git a/src/validator/bucketSchema.ts b/src/validator/bucketSchema.ts
index 80b8cc4..00fd284 100644
--- a/src/validator/bucketSchema.ts
+++ b/src/validator/bucketSchema.ts
@@ -50,6 +50,9 @@ export const bucketSchema = {
             code: {
               type: 'string',
             },
+            domain: {
+              type: 'string',
+            },
             index: {
               type: 'string',
             },
diff --git a/tests/fixtures/deployFixture.ts b/tests/fixtures/deployFixture.ts
index 33e9427..da541f2 100644
--- a/tests/fixtures/deployFixture.ts
+++ b/tests/fixtures/deployFixture.ts
@@ -1289,6 +1289,7 @@ export const bucketWithWebsiteIac = {
       name: 'my-bucket',
       website: {
         code: 'tests/fixtures/artifacts/large-artifact.zip',
+        domain: 'my-bucket.com',
         index: 'index.html',
         error_page: '404.html',
         error_code: 404,
@@ -1398,6 +1399,15 @@ export const bucketWithWebsiteRos = {
       },
       Type: 'ALIYUN::OSS::Bucket',
     },
+    my_bucket_custom_domain_bXktYnVja2V0LmNvbQ: {
+      Properties: {
+        BucketName: {
+          'Fn::GetAtt': ['my_bucket', 'Name'],
+        },
+        DomainName: 'my-bucket.com',
+      },
+      Type: 'ALIYUN::OSS::Domain',
+    },
     si_auto_my_bucket_bucket_code_deployment: {
       Properties: {
         Parameters: {
diff --git a/tests/stack/deploy.test.ts b/tests/stack/deploy.test.ts
index d6ebd5f..9096a51 100644
--- a/tests/stack/deploy.test.ts
+++ b/tests/stack/deploy.test.ts
@@ -197,7 +197,7 @@ describe('Unit tests for stack deployment', () => {
       ]);
     });
 
-    it('should deploy bucket as a website when website  field is provided', async () => {
+    it('should deploy bucket as a website when website field is provided', async () => {
       const stackName = 'my-website-bucket-stack';
       mockedRosStackDeploy.mockResolvedValue(stackName);