diff --git a/packages/plugins/plugin-lib/src/aliyun/lib/ssl-client.ts b/packages/plugins/plugin-lib/src/aliyun/lib/ssl-client.ts
index c7208fd12..7ca7f4f7c 100644
--- a/packages/plugins/plugin-lib/src/aliyun/lib/ssl-client.ts
+++ b/packages/plugins/plugin-lib/src/aliyun/lib/ssl-client.ts
@@ -153,4 +153,17 @@ export class AliyunSslClient {
   async deleteCert(certId: any) {
     await this.doRequest("DeleteUserCertificate", { CertId: certId }, { method: "POST" });
   }
+
+  getCasRegionFromEndpoint(endpoint: string) {
+    /**
+     * {value: 'cas.aliyuncs.com', label: '中国大陆'},
+     *         {value: 'cas.ap-southeast-1.aliyuncs.com', label: '新加坡'},
+     *         {value: 'cas.eu-central-1.aliyuncs.com', label: '德国（法兰克福）'},
+     */
+    const region = endpoint.replace(".aliyuncs.com", "").replace("cas.", "");
+    if (region === "cas") {
+      return "cn-hangzhou";
+    }
+    return region;
+  }
 }
diff --git a/packages/ui/certd-server/src/plugins/plugin-aliyun/plugin/deploy-to-slb/index.ts b/packages/ui/certd-server/src/plugins/plugin-aliyun/plugin/deploy-to-slb/index.ts
index b8cc60e24..f6950be63 100644
--- a/packages/ui/certd-server/src/plugins/plugin-aliyun/plugin/deploy-to-slb/index.ts
+++ b/packages/ui/certd-server/src/plugins/plugin-aliyun/plugin/deploy-to-slb/index.ts
@@ -229,10 +229,13 @@ export class AliyunDeployCertToSLB extends AbstractTaskPlugin {
   }
 
   async uploadServerCert(client: any, aliyunCert: CasCertInfo) {
+
+    const casRegion = client.getCasRegionFromEndpoint(this.casEndpoint);
     const params = {
       RegionId: this.regionId,
       AliCloudCertificateId: aliyunCert.certId,
       AliCloudCertificateName: aliyunCert.certName,
+      AliCloudCertificateRegionId: casRegion
     };
 
     const res = await client.request('UploadServerCertificate', params);