diff --git a/cmd/migrate.go b/cmd/migrate.go
deleted file mode 100644
index dad0cad..0000000
--- a/cmd/migrate.go
+++ /dev/null
@@ -1,69 +0,0 @@
-package cmd
-
-import (
-	"fmt"
-	"os"
-
-	"github.com/spf13/cobra"
-
-	"github.com/peterqiu0516/sub-store/internal/config"
-	"github.com/peterqiu0516/sub-store/internal/database"
-)
-
-//go:generate echo "embed handled in migrate.go"
-
-var migrateCmd = &cobra.Command{
-	Use:   "migrate",
-	Short: "Run database migrations",
-	RunE: func(cmd *cobra.Command, args []string) error {
-		cfg, err := config.Load(configFile)
-		if err != nil {
-			return err
-		}
-		db, err := database.InitDB(cfg.Database.Path)
-		if err != nil {
-			return err
-		}
-		defer db.Close()
-		return database.RunMigrations(db)
-	},
-}
-
-var configFile string
-
-func init() {
-	rootCmd.AddCommand(migrateCmd)
-	migrateCmd.Flags().StringVarP(&configFile, "config", "c", "", "config file path")
-
-	serveCmd.Flags().StringVarP(&configFile, "config", "c", "", "config file path")
-	rootCmd.AddCommand(serveCmd)
-}
-
-var serveCmd = &cobra.Command{
-	Use:   "serve",
-	Short: "Start the Sub-Store HTTP server",
-	RunE: func(cmd *cobra.Command, args []string) error {
-		cfg, err := config.Load(configFile)
-		if err != nil {
-			fmt.Fprintln(os.Stderr, err)
-			os.Exit(1)
-		}
-		return RunServer(cfg)
-	},
-}
-
-func RunServer(cfg *config.Config) error {
-	db, err := database.InitDB(cfg.Database.Path)
-	if err != nil {
-		return err
-	}
-	defer db.Close()
-
-	if err := database.RunMigrations(db); err != nil {
-		return err
-	}
-
-	return startFiber(cfg, db)
-}
-
-// startFiber is implemented in server.go (same package).
diff --git a/cmd/server.go b/cmd/server.go
index 0f4ae12..da00c31 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -11,6 +11,7 @@ import (
 	"github.com/gofiber/fiber/v3"
 	"github.com/sirupsen/logrus"
 	"github.com/jmoiron/sqlx"
+	"github.com/spf13/cobra"
 
 	"github.com/peterqiu0516/sub-store/internal/config"
 	"github.com/peterqiu0516/sub-store/internal/database"
@@ -18,6 +19,43 @@ import (
 	"github.com/peterqiu0516/sub-store/internal/middleware"
 )
 
+var configFile string
+
+var serveCmd = &cobra.Command{
+	Use:   "serve",
+	Short: "Start the Sub-Store HTTP server",
+	RunE: func(cmd *cobra.Command, args []string) error {
+		cfg, err := config.Load(configFile)
+		if err != nil {
+			fmt.Fprintln(os.Stderr, err)
+			os.Exit(1)
+		}
+		return RunServer(cfg)
+	},
+}
+
+func init() {
+	rootCmd.AddCommand(serveCmd)
+	serveCmd.Flags().StringVarP(&configFile, "config", "c", "", "config file path")
+}
+
+// RunServer opens the database, applies migrations (idempotent — goose tracks
+// applied versions in goose_db_version), then starts the HTTP server.
+func RunServer(cfg *config.Config) error {
+	db, err := database.InitDB(cfg.Database.Path)
+	if err != nil {
+		return err
+	}
+	defer db.Close()
+
+	// Auto-migrate on every startup; goose is idempotent so this is safe to call repeatedly.
+	if err := database.RunMigrations(db); err != nil {
+		return err
+	}
+
+	return startFiber(cfg, db)
+}
+
 func startFiber(cfg *config.Config, db *sqlx.DB) error {
 	logrus.SetFormatter(&logrus.TextFormatter{
 		FullTimestamp: true,
diff --git a/docs/backend-dev-plan.md b/docs/backend-dev-plan.md
index d9e2d64..96a1631 100644
--- a/docs/backend-dev-plan.md
+++ b/docs/backend-dev-plan.md
@@ -62,8 +62,7 @@ sub-store/
 ├── main.go                         # 入口，调用 cmd
 ├── cmd/
 │   ├── root.go                     # cobra root command
-│   ├── serve.go                    # sub-store serve (启动 HTTP 服务)
-│   ├── migrate.go                  # sub-store migrate (执行数据库迁移)
+│   ├── serve.go                    # sub-store serve (启动 HTTP 服务，启动时自动 migrate)
 │   └── version.go                  # sub-store version
 ├── internal/
 │   ├── config/
@@ -322,11 +321,11 @@ ON source_cache(cached_at + ttl);
 | 任务 | 产出 | 依赖库 |
 |------|------|--------|
 | go mod init + 依赖引入 | `go.mod` | 全部 |
-| cobra root/serve/migrate/version 命令 | `cmd/*.go` | cobra |
+| cobra root/serve/version 命令 | `cmd/*.go` | cobra |
 | viper 配置加载 | `internal/config/config.go` | viper |
 | logrus 日志初始化 | 日志格式化、级别、输出 | logrus |
 | SQLite 连接初始化 | `internal/database/db.go` | modernc/sqlite, sqlx |
-| goose 迁移执行 | `cmd/migrate.go` | goose |
+| goose 迁移执行（启动时自动） | `internal/database/migrations.go` | goose |
 | 3 个 migration SQL 文件 | `internal/database/migrations/` | |
 | Fiber app 骨架 | 路由注册、健康检查 | fiber/v3 |
 | 优雅关闭 | signal handling | |
@@ -830,11 +829,8 @@ output: YAML with proxies: [{name:"test", type:"ss", ...}]
 # 构建
 go build -o sub-store ./main.go
 
-# 运行
+# 运行（启动时自动执行迁移，幂等）
 ./sub-store serve --config config.yaml
-
-# 迁移
-./sub-store migrate --config config.yaml
 ```
 
 ### 9.2 配置
diff --git a/docs/review-resolutions.md b/docs/review-resolutions.md
index 9f47c2a..c60d4f8 100644
--- a/docs/review-resolutions.md
+++ b/docs/review-resolutions.md
@@ -42,7 +42,7 @@
 | 30 | importStorage 导入顺序 | settings→sources→templates→collections | `handler/storage.go` |
 | 31 | exportStorage 排除内置模板 | 过滤 BuiltinTemplateIDs | `handler/storage.go` |
 | 32 | source_cache TTL 清理 | 后台 goroutine 定时清理 | `database/cache_repo.go` |
-| 33 | goose 迁移嵌入 | //go:embed + SetBaseFS | `cmd/migrate.go` |
+| 33 | goose 迁移嵌入 | //go:embed + SetBaseFS | `database/migrations.go` |
 | 34 | goroutine 关闭安全 | sync.WaitGroup + context | `service/subscription.go` |
 | 35 | 缓存操作错误吞咽 | recover + 日志，不传播 | `database/cache_repo.go` |
 | 36 | 并发 wait 延迟 | 保留 waitMs 参数 | `service/concurrency.go` |
@@ -491,7 +491,7 @@ func RunMigrations(db *sqlx.DB) error {
 }
 ```
 
-**落地**：`cmd/migrate.go` + `database/migrations/*.sql`。
+**落地**：`database/migrations.go` + `database/migrations/*.sql`。启动时自动执行，幂等（goose 跟踪 `goose_db_version`）。
 
 ---