diff --git a/test_oss.php b/test_oss.php
new file mode 100644
index 0000000..7d3094e
--- /dev/null
+++ b/test_oss.php
@@ -0,0 +1,171 @@
+<?php
+/**
+ * 阿里云 OSS 连接测试脚本
+ * 
+ * 用于测试 OSS 配置是否正确
+ */
+
+error_reporting(E_ALL);
+ini_set('display_errors', 1);
+
+echo "========================================\n";
+echo "阿里云 OSS 连接测试\n";
+echo "========================================\n\n";
+
+// 加载配置
+$config_file = __DIR__ . '/config.php';
+if (file_exists($config_file)) {
+    require_once $config_file;
+    echo "✓ 配置文件加载成功\n\n";
+} else {
+    echo "✗ 未找到配置文件 config.php\n";
+    echo "  请先运行 install_oss.sh 或手动创建配置文件\n";
+    exit(1);
+}
+
+// 检查配置
+echo "[1/5] 检查配置参数...\n";
+$errors = array();
+
+if (!isset($use_aliyun_oss)) {
+    $errors[] = "未定义 \$use_aliyun_oss";
+}
+
+if (!isset($oss_config)) {
+    $errors[] = "未定义 \$oss_config";
+} else {
+    if (empty($oss_config['access_key_id']) || $oss_config['access_key_id'] == 'YOUR_ACCESS_KEY_ID') {
+        $errors[] = "AccessKeyId 未配置或为默认值";
+    }
+    if (empty($oss_config['access_key_secret']) || $oss_config['access_key_secret'] == 'YOUR_ACCESS_KEY_SECRET') {
+        $errors[] = "AccessKeySecret 未配置或为默认值";
+    }
+    if (empty($oss_config['endpoint'])) {
+        $errors[] = "Endpoint 未配置";
+    }
+    if (empty($oss_config['bucket']) || $oss_config['bucket'] == 'your-bucket-name') {
+        $errors[] = "Bucket 未配置或为默认值";
+    }
+}
+
+if (!empty($errors)) {
+    echo "✗ 配置检查失败：\n";
+    foreach ($errors as $error) {
+        echo "  - $error\n";
+    }
+    exit(1);
+}
+
+echo "✓ 配置参数检查通过\n\n";
+
+// 检查 OSS SDK
+echo "[2/5] 检查 OSS SDK...\n";
+if (!isset($oss_sdk_path)) {
+    $oss_sdk_path = __DIR__ . '/vendor/autoload.php';
+}
+
+if (!file_exists($oss_sdk_path)) {
+    echo "✗ OSS SDK 未安装\n";
+    echo "  请运行: composer require aliyuncs/oss-sdk-php\n";
+    exit(1);
+}
+
+require_once $oss_sdk_path;
+
+if (!class_exists('OSS\OssClient')) {
+    echo "✗ OSS SDK 类不存在\n";
+    echo "  请确认 SDK 安装正确\n";
+    exit(1);
+}
+
+echo "✓ OSS SDK 已安装\n\n";
+
+// 测试 OSS 连接
+echo "[3/5] 测试 OSS 连接...\n";
+
+try {
+    $ossClient = new OSS\OssClient(
+        $oss_config['access_key_id'],
+        $oss_config['access_key_secret'],
+        $oss_config['endpoint']
+    );
+    
+    echo "✓ OSS 客户端创建成功\n\n";
+} catch (Exception $e) {
+    echo "✗ OSS 客户端创建失败\n";
+    echo "  错误信息: " . $e->getMessage() . "\n";
+    exit(1);
+}
+
+// 测试 Bucket 访问
+echo "[4/5] 测试 Bucket 访问...\n";
+
+try {
+    $exists = $ossClient->doesBucketExist($oss_config['bucket']);
+    
+    if ($exists) {
+        echo "✓ Bucket '{$oss_config['bucket']}' 存在且可访问\n\n";
+    } else {
+        echo "✗ Bucket '{$oss_config['bucket']}' 不存在\n";
+        echo "  请检查 Bucket 名称是否正确\n";
+        exit(1);
+    }
+} catch (Exception $e) {
+    echo "✗ Bucket 访问测试失败\n";
+    echo "  错误信息: " . $e->getMessage() . "\n";
+    exit(1);
+}
+
+// 测试文件操作
+echo "[5/5] 测试文件操作...\n";
+
+$testFile = 'oss_test_' . time() . '.txt';
+$testContent = 'OSS 连接测试 - ' . date('Y-m-d H:i:s');
+
+try {
+    // 上传测试文件
+    $ossClient->putObject($oss_config['bucket'], $testFile, $testContent);
+    echo "✓ 文件上传成功\n";
+    
+    // 读取测试文件
+    $content = $ossClient->getObject($oss_config['bucket'], $testFile);
+    if ($content == $testContent) {
+        echo "✓ 文件读取成功\n";
+    } else {
+        echo "✗ 文件内容不匹配\n";
+    }
+    
+    // 删除测试文件
+    $ossClient->deleteObject($oss_config['bucket'], $testFile);
+    echo "✓ 文件删除成功\n\n";
+    
+} catch (Exception $e) {
+    echo "✗ 文件操作失败\n";
+    echo "  错误信息: " . $e->getMessage() . "\n";
+    exit(1);
+}
+
+// 显示配置摘要
+echo "========================================\n";
+echo "测试完成！所有测试通过\n";
+echo "========================================\n\n";
+
+echo "配置摘要：\n";
+echo "  OSS 状态: " . ($use_aliyun_oss ? '已启用' : '未启用') . "\n";
+echo "  Endpoint: {$oss_config['endpoint']}\n";
+echo "  Bucket: {$oss_config['bucket']}\n";
+echo "  使用 HTTPS: " . ($oss_config['use_ssl'] ? '是' : '否') . "\n";
+echo "  使用内网: " . ($oss_config['use_internal'] ? '是' : '否') . "\n";
+if (!empty($oss_config['prefix'])) {
+    echo "  路径前缀: {$oss_config['prefix']}\n";
+}
+
+echo "\n";
+echo "下一步：\n";
+if (!$use_aliyun_oss) {
+    echo "  在 config.php 中设置 \$use_aliyun_oss = true 以启用 OSS\n";
+}
+echo "  访问 Tiny File Manager 开始使用\n";
+echo "\n";
+
+?>