diff --git a/apps/server/src/server/auth/schema.ts b/apps/server/src/server/auth/schema.ts
new file mode 100644
index 0000000..06a1636
--- /dev/null
+++ b/apps/server/src/server/auth/schema.ts
@@ -0,0 +1,70 @@
+import { boolean, pgTable, text, timestamp } from 'drizzle-orm/pg-core'
+
+/**
+ * Better Auth 认证表
+ *
+ * 注意：所有 ID 使用 text 类型（Better Auth 自管 ID 生成），
+ * 不使用项目的 generatedFields（UUID v7）。
+ */
+
+export const userTable = pgTable('user', {
+  id: text('id').primaryKey(),
+  name: text('name').notNull(),
+  email: text('email').notNull().unique(),
+  emailVerified: boolean('email_verified').notNull().default(false),
+  image: text('image'),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true })
+    .notNull()
+    .defaultNow()
+    .$onUpdateFn(() => new Date()),
+})
+
+export const sessionTable = pgTable('session', {
+  id: text('id').primaryKey(),
+  expiresAt: timestamp('expires_at', { withTimezone: true }).notNull(),
+  token: text('token').notNull().unique(),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true })
+    .notNull()
+    .defaultNow()
+    .$onUpdateFn(() => new Date()),
+  ipAddress: text('ip_address'),
+  userAgent: text('user_agent'),
+  userId: text('user_id')
+    .notNull()
+    .references(() => userTable.id, { onDelete: 'cascade' }),
+})
+
+export const accountTable = pgTable('account', {
+  id: text('id').primaryKey(),
+  accountId: text('account_id').notNull(),
+  providerId: text('provider_id').notNull(),
+  userId: text('user_id')
+    .notNull()
+    .references(() => userTable.id, { onDelete: 'cascade' }),
+  accessToken: text('access_token'),
+  refreshToken: text('refresh_token'),
+  idToken: text('id_token'),
+  accessTokenExpiresAt: timestamp('access_token_expires_at', { withTimezone: true }),
+  refreshTokenExpiresAt: timestamp('refresh_token_expires_at', { withTimezone: true }),
+  scope: text('scope'),
+  password: text('password'),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true })
+    .notNull()
+    .defaultNow()
+    .$onUpdateFn(() => new Date()),
+})
+
+export const verificationTable = pgTable('verification', {
+  id: text('id').primaryKey(),
+  identifier: text('identifier').notNull(),
+  value: text('value').notNull(),
+  expiresAt: timestamp('expires_at', { withTimezone: true }).notNull(),
+  createdAt: timestamp('created_at', { withTimezone: true }).notNull().defaultNow(),
+  updatedAt: timestamp('updated_at', { withTimezone: true })
+    .notNull()
+    .defaultNow()
+    .$onUpdateFn(() => new Date()),
+})