diff --git a/cmd/api/main.go b/cmd/api/main.go
index b8ff6ca..6fa43c9 100644
--- a/cmd/api/main.go
+++ b/cmd/api/main.go
@@ -16,6 +16,7 @@ import (
 	oahandler "wx_service/internal/common/wechat_official/handler"
 	oaservice "wx_service/internal/common/wechat_official/service"
 	"wx_service/internal/database"
+	expiry "wx_service/internal/expiry"
 	lawyerhandler "wx_service/internal/lawyer/handler"
 	lawyerservice "wx_service/internal/lawyer/service"
 	membershiphandler "wx_service/internal/membership/handler"
@@ -116,8 +117,12 @@ func main() {
 		log.Println("lawyer 数据库未配置，/lawyers 接口已禁用")
 	}
 
+	expiryRepo := expiry.NewRepository(database.DB)
+	expiryService := expiry.NewService(expiryRepo)
+	expiryHandler := expiry.NewHandler(expiryService)
+
 	// 6) 注册路由：把 URL 映射到 handler
-	routes.Register(router, database.DB, authHandler, videoHandler, smokeHandler, redeemCodeHandler, uploadHandler, oaOAuthHandler, sessionCache, lawyerHandler)
+	routes.Register(router, database.DB, authHandler, videoHandler, smokeHandler, redeemCodeHandler, uploadHandler, oaOAuthHandler, sessionCache, lawyerHandler, expiryHandler)
 
 	// 7) 启动监听端口
 	addr := ":" + config.AppConfig.Server.Port
diff --git a/internal/expiry/handler.go b/internal/expiry/handler.go
new file mode 100644
index 0000000..c0dfa92
--- /dev/null
+++ b/internal/expiry/handler.go
@@ -0,0 +1,28 @@
+package expiry
+
+import (
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+// Handler 负责 HTTP 层处理。
+type Handler struct {
+	service *Service
+}
+
+func NewHandler(service *Service) *Handler {
+	return &Handler{service: service}
+}
+
+// Healthz 用于 expiry 模块健康检查。
+func (h *Handler) Healthz(c *gin.Context) {
+	c.JSON(http.StatusOK, gin.H{
+		"code":    0,
+		"message": "success",
+		"data": gin.H{
+			"module": "expiry",
+			"status": "ok",
+		},
+	})
+}
diff --git a/internal/expiry/model.go b/internal/expiry/model.go
new file mode 100644
index 0000000..2fe889d
--- /dev/null
+++ b/internal/expiry/model.go
@@ -0,0 +1,19 @@
+package expiry
+
+import "time"
+
+// ExpiryItem 表示保质期物品。
+// 详细字段会在后续 issue 中完善。
+type ExpiryItem struct {
+	ID        uint      `json:"id"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+// ExpiryUserSettings 表示用户提醒设置。
+// 详细字段会在后续 issue 中完善。
+type ExpiryUserSettings struct {
+	ID        uint      `json:"id"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
diff --git a/internal/expiry/repository.go b/internal/expiry/repository.go
new file mode 100644
index 0000000..d29bbd5
--- /dev/null
+++ b/internal/expiry/repository.go
@@ -0,0 +1,12 @@
+package expiry
+
+import "gorm.io/gorm"
+
+// Repository 封装保质期模块的数据访问能力。
+type Repository struct {
+	db *gorm.DB
+}
+
+func NewRepository(db *gorm.DB) *Repository {
+	return &Repository{db: db}
+}
diff --git a/internal/expiry/service.go b/internal/expiry/service.go
new file mode 100644
index 0000000..82a1fb0
--- /dev/null
+++ b/internal/expiry/service.go
@@ -0,0 +1,10 @@
+package expiry
+
+// Service 封装保质期模块业务逻辑。
+type Service struct {
+	repo *Repository
+}
+
+func NewService(repo *Repository) *Service {
+	return &Service{repo: repo}
+}
diff --git a/internal/routes/expiry_routes.go b/internal/routes/expiry_routes.go
new file mode 100644
index 0000000..5834a45
--- /dev/null
+++ b/internal/routes/expiry_routes.go
@@ -0,0 +1,19 @@
+package routes
+
+import (
+	"github.com/gin-gonic/gin"
+
+	expiryhandler "wx_service/internal/expiry"
+)
+
+func registerExpiryRoutes(protected *gin.RouterGroup, expiryHandler *expiryhandler.Handler) {
+	if expiryHandler == nil {
+		return
+	}
+
+	// 后续 issue 会补齐完整的物品/设置接口。
+	expiry := protected.Group("")
+	{
+		_ = expiry
+	}
+}
diff --git a/internal/routes/routes.go b/internal/routes/routes.go
index 9be7e4f..2ceeada 100644
--- a/internal/routes/routes.go
+++ b/internal/routes/routes.go
@@ -10,6 +10,7 @@ import (
 	qiniuhandler "wx_service/internal/common/qiniu/handler"
 	rediscache "wx_service/internal/common/redis/cache"
 	oahandler "wx_service/internal/common/wechat_official/handler"
+	expiryhandler "wx_service/internal/expiry"
 	lawyerhandler "wx_service/internal/lawyer/handler"
 	membershiphandler "wx_service/internal/membership/handler"
 	"wx_service/internal/middleware"
@@ -28,6 +29,7 @@ func Register(
 	oaOAuthHandler *oahandler.OAuthHandler,
 	sessionCache *rediscache.SessionUserCache,
 	lawyerHandler *lawyerhandler.LawyerHandler,
+	expiryHandler *expiryhandler.Handler,
 ) {
 	// Register 用来集中注册所有 HTTP 路由，便于工程结构更清晰：
 	// - main 只负责初始化（配置/DB/依赖注入）
@@ -57,6 +59,19 @@ func Register(
 		}
 	}
 
+	// 保质期提醒模块使用独立前缀 /api/expiry，与现有 /api/v1 并存。
+	expiryAPI := router.Group("/api/expiry")
+	{
+		expiryAPI.GET("/healthz", expiryHandler.Healthz)
+
+		expiryProtected := expiryAPI.Group("")
+		expiryProtected.Use(middleware.AuthMiddleware(db, sessionCache))
+		expiryProtected.Use(middleware.RequireUserMiddleware())
+		{
+			registerExpiryRoutes(expiryProtected, expiryHandler)
+		}
+	}
+
 	// 健康检查：用于容器/负载均衡探活
 	router.GET("/healthz", func(c *gin.Context) {
 		c.JSON(http.StatusOK, gin.H{"status": "ok"})