diff --git a/packages/core/package.json b/packages/core/package.json
index 46b38fe..d5fd8a0 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cool-midway/core",
-  "version": "6.0.4",
+  "version": "6.0.5",
   "description": "",
   "main": "dist/index.js",
   "typings": "index.d.ts",
diff --git a/packages/core/src/interface.ts b/packages/core/src/interface.ts
index 9a69f88..2bf228b 100644
--- a/packages/core/src/interface.ts
+++ b/packages/core/src/interface.ts
@@ -147,6 +147,8 @@ export interface OSSConfig {
   expAfter?: number;
   /** 文件最大的 size */
   maxSize?: number;
+  // host
+  host?: string;
 }
 
 /**
diff --git a/packages/core/src/package.json b/packages/core/src/package.json
index b4d0170..106e770 100644
--- a/packages/core/src/package.json
+++ b/packages/core/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cool-midway/core",
-  "version": "6.0.4",
+  "version": "6.0.5",
   "description": "",
   "main": "index.js",
   "typings": "index.d.ts",
diff --git a/packages/file/package.json b/packages/file/package.json
index c1f1778..4ed6447 100644
--- a/packages/file/package.json
+++ b/packages/file/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cool-midway/file",
-  "version": "6.0.1",
+  "version": "6.0.2",
   "description": "",
   "main": "dist/index.js",
   "typings": "index.d.ts",
diff --git a/packages/file/src/file.ts b/packages/file/src/file.ts
index 2bfc5bf..166a659 100644
--- a/packages/file/src/file.ts
+++ b/packages/file/src/file.ts
@@ -308,6 +308,7 @@ export class CoolFile {
       endpoint,
       expAfter = 300000,
       maxSize = 200 * 1024 * 1024,
+      host,
     } = this.config.oss;
     const oss = {
       bucket,
@@ -317,7 +318,7 @@ export class CoolFile {
       expAfter, // 签名失效时间，毫秒
       maxSize, // 文件最大的 size
     };
-    const host = `https://${bucket}.${endpoint}`;
+    const newHost = host ? host : `https://${bucket}.${endpoint}`;
     const expireTime = new Date().getTime() + oss.expAfter;
     const expiration = new Date(expireTime).toISOString();
     const policyString = JSON.stringify({
@@ -336,7 +337,7 @@ export class CoolFile {
     return {
       signature,
       policy,
-      host,
+      host: newHost,
       OSSAccessKeyId: accessKeyId,
       success_action_status: 200,
     };
diff --git a/packages/file/src/interface.ts b/packages/file/src/interface.ts
index 1871a29..db332ae 100644
--- a/packages/file/src/interface.ts
+++ b/packages/file/src/interface.ts
@@ -61,6 +61,8 @@ export interface OSSConfig {
   expAfter?: number;
   // 文件最大的 size
   maxSize?: number;
+  // host
+  host?: string;
 }
 
 /**
diff --git a/packages/file/src/package.json b/packages/file/src/package.json
index 08f66e4..87f5003 100644
--- a/packages/file/src/package.json
+++ b/packages/file/src/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@cool-midway/file",
-  "version": "6.0.1",
+  "version": "6.0.2",
   "description": "",
   "main": "index.js",
   "typings": "index.d.ts",