diff --git a/src/drizzle/schema.ts b/src/drizzle/schema.ts
index f2f347d..585866a 100644
--- a/src/drizzle/schema.ts
+++ b/src/drizzle/schema.ts
@@ -131,6 +131,10 @@ export const messages = pgTable('messages', {
   toolResults: jsonb('tool_results').$type<ToolResult[]>(),
   // 代码执行产生的图片（Base64 编码数组）
   images: jsonb('images').$type<string[]>(),
+  // 用户上传的图片（Base64 编码数组）
+  uploadedImages: jsonb('uploaded_images').$type<string[]>(),
+  // 用户上传的文档
+  uploadedDocuments: jsonb('uploaded_documents').$type<UploadedDocumentData[]>(),
   // Token 统计
   inputTokens: integer('input_tokens').default(0),
   outputTokens: integer('output_tokens').default(0),
@@ -243,6 +247,14 @@ export interface ToolResult {
   isError?: boolean;
 }
 
+// 上传的文档数据（用于持久化存储）
+export interface UploadedDocumentData {
+  name: string;
+  size: number;
+  type: string;
+  content: string;
+}
+
 // 导出类型
 export type User = typeof users.$inferSelect;
 export type NewUser = typeof users.$inferInsert;