diff --git a/app/components/auth/Register.tsx b/app/components/auth/Register.tsx
index 06d30f4..1246174 100644
--- a/app/components/auth/Register.tsx
+++ b/app/components/auth/Register.tsx
@@ -1,10 +1,8 @@
 import React, { useState } from 'react';
 import { useNavigate } from '@remix-run/react';
 import { useAuth } from '~/hooks/useAuth';
-import { getOSSUploadPolicy } from '~/utils/aliyunOSS';
-
-// 导入我们刚刚定义的接口
 import type { RegisterResponse } from '~/routes/api.auth.register';
+import { uploadToOSS } from '~/utils/uploadToOSS';
 
 export function Register() {
   const [phone, setPhone] = useState('');
@@ -26,26 +24,8 @@ export function Register() {
       return;
     }
     try {
-      // 获取OSS上传策略
-      const ossPolicy = await getOSSUploadPolicy();
-
       // 上传头像到OSS
-      const formData = new FormData();
-      Object.entries(ossPolicy).forEach(([key, value]) => {
-        formData.append(key, value as string);
-      });
-      formData.append('file', avatar);
-
-      const uploadResponse = await fetch(ossPolicy.host, {
-        method: 'POST',
-        body: formData,
-      });
-
-      if (!uploadResponse.ok) {
-        throw new Error('头像上传失败');
-      }
-
-      const avatarUrl = `${ossPolicy.host}/${ossPolicy.key}`;
+      const avatarUrl = await uploadToOSS(avatar);
 
       // 注册用户
       const registerResponse = await fetch('/api/auth/register', {
@@ -65,6 +45,7 @@ export function Register() {
       if (registerResponse.ok && data.token && data.user) {
         // 注册成功后直接登录
         login(data.token, data.user);
+        navigate('/dashboard');
       } else {
         alert(data.error || '注册失败，请稍后再试');
       }
diff --git a/app/routes/api.oss.upload-policy.ts b/app/routes/api.oss.upload-policy.ts
new file mode 100644
index 0000000..84e80a2
--- /dev/null
+++ b/app/routes/api.oss.upload-policy.ts
@@ -0,0 +1,13 @@
+import { json } from '@remix-run/node';
+import type { LoaderFunction } from '@remix-run/node';
+import { getOSSUploadPolicy, type OSSPolicy } from '~/utils/aliyunOSS.server';
+
+export const loader: LoaderFunction = async () => {
+  try {
+    const policy: OSSPolicy = await getOSSUploadPolicy();
+    return json(policy);
+  } catch (error) {
+    console.error('Error generating OSS upload policy:', error);
+    return json({ error: '获取上传策略失败' }, { status: 500 });
+  }
+};
diff --git a/app/utils/aliyunOSS.server.ts b/app/utils/aliyunOSS.server.ts
new file mode 100644
index 0000000..87582d6
--- /dev/null
+++ b/app/utils/aliyunOSS.server.ts
@@ -0,0 +1,47 @@
+import OSS from 'ali-oss';
+import { v4 as uuidv4 } from 'uuid';
+import { env } from 'node:process';
+
+// 更新 OSSPolicy 接口以匹配实际返回的数据
+export interface OSSPolicy {
+  OSSAccessKeyId: string;
+  policy: string;
+  Signature: string;
+  host: string;
+  expire: number;
+  key: string;
+}
+
+const ossConfig = {
+  region: env.ALIYUN_OSS_REGION!,
+  accessKeyId: env.ALIYUN_OSS_ACCESS_KEY_ID!,
+  accessKeySecret: env.ALIYUN_OSS_ACCESS_KEY_SECRET!,
+  bucket: env.ALIYUN_OSS_BUCKET!,
+};
+
+if (Object.values(ossConfig).some(value => value === undefined)) {
+  throw new Error('缺少必要的阿里云 OSS 配置');
+}
+
+export async function getOSSUploadPolicy(): Promise<OSSPolicy> {
+  const client = new OSS(ossConfig);
+  const date = new Date();
+  date.setDate(date.getDate() + 1);
+  const policy = {
+    expiration: date.toISOString(),
+    conditions: [
+      ['content-length-range', 0, 1048576000], // 限制文件大小最大为1GB
+      ['starts-with', '$key', 'avatars/']
+    ]
+  };
+
+  const formData = await client.calculatePostSignature(policy);
+  const key = `avatars/${uuidv4()}`;
+
+  return {
+    ...formData,
+    key,
+    host: `https://${ossConfig.bucket}.${ossConfig.region}.aliyuncs.com`,
+    expire: Math.floor(date.getTime() / 1000)
+  };
+}
diff --git a/app/utils/uploadToOSS.ts b/app/utils/uploadToOSS.ts
new file mode 100644
index 0000000..a451763
--- /dev/null
+++ b/app/utils/uploadToOSS.ts
@@ -0,0 +1,34 @@
+import type { OSSPolicy } from './aliyunOSS.server';
+
+export async function uploadToOSS(file: File): Promise<string> {
+  try {
+    // 获取OSS上传策略
+    const policyResponse = await fetch('/api/oss/upload-policy');
+    if (!policyResponse.ok) {
+      throw new Error('获取上传策略失败');
+    }
+    const ossPolicy: OSSPolicy = await policyResponse.json();
+
+    // 上传文件到OSS
+    const formData = new FormData();
+    Object.entries(ossPolicy).forEach(([key, value]) => {
+      formData.append(key, value.toString());
+    });
+    formData.append('file', file);
+
+    const uploadResponse = await fetch(ossPolicy.host, {
+      method: 'POST',
+      body: formData,
+    });
+
+    if (!uploadResponse.ok) {
+      throw new Error('文件上传失败');
+    }
+
+    // 返回文件的URL
+    return `${ossPolicy.host}/${ossPolicy.key}`;
+  } catch (error) {
+    console.error('Upload to OSS failed:', error);
+    throw error;
+  }
+}