diff --git a/cmd/start.go b/cmd/start.go
index 70116442..bd25a2f6 100644
--- a/cmd/start.go
+++ b/cmd/start.go
@@ -22,10 +22,12 @@ import (
 	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/yao/config"
 	"github.com/yaoapp/yao/engine"
+	ischedule "github.com/yaoapp/yao/schedule"
 	"github.com/yaoapp/yao/service"
 	"github.com/yaoapp/yao/setup"
 	"github.com/yaoapp/yao/share"
 	"github.com/yaoapp/yao/studio"
+	itask "github.com/yaoapp/yao/task"
 )
 
 var startDebug = false
@@ -134,6 +136,15 @@ var startCmd = &cobra.Command{
 
 		}
 
+		// Start Tasks
+		itask.Start()
+		defer itask.Stop()
+
+		// Start Schedules
+		ischedule.Start()
+		defer ischedule.Stop()
+
+		// Start HTTP Server
 		srv, err := service.Start(config.Conf)
 		defer func() {
 			service.Stop(srv)
@@ -145,7 +156,16 @@ var startCmd = &cobra.Command{
 			os.Exit(1)
 		}
 
-		// print the messages under the production mode
+		// Start watching
+		watchDone := make(chan uint8, 1)
+		if mode == "development" && !startDisableWatching {
+			fmt.Println(color.WhiteString("\n---------------------------------"))
+			fmt.Println(color.WhiteString(L("Watching")))
+			fmt.Println(color.WhiteString("---------------------------------"))
+			go service.Watch(srv, watchDone)
+		}
+
+		// Print the messages under the production mode
 		if mode == "production" {
 			printApis(true)
 			printTasks(true)
@@ -154,16 +174,6 @@ var startCmd = &cobra.Command{
 			printStores(true)
 		}
 
-		// start watching
-		watchDone := make(chan uint8, 1)
-		if mode == "development" && !startDisableWatching {
-			// Watching
-			fmt.Println(color.WhiteString("\n---------------------------------"))
-			fmt.Println(color.WhiteString(L("Watching")))
-			fmt.Println(color.WhiteString("---------------------------------"))
-			go service.Watch(srv, watchDone)
-		}
-
 		for {
 			select {
 			case v := <-srv.Event():
diff --git a/schedule/schedule.go b/schedule/schedule.go
index 5ef28cab..eebeb8ac 100644
--- a/schedule/schedule.go
+++ b/schedule/schedule.go
@@ -1,20 +1,49 @@
 package schedule
 
 import (
+	"fmt"
+	"strings"
+
 	"github.com/yaoapp/gou/application"
 	"github.com/yaoapp/gou/schedule"
+	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/yao/config"
 	"github.com/yaoapp/yao/share"
 )
 
 // Load load schedule
 func Load(cfg config.Config) error {
+	messages := []string{}
 	exts := []string{"*.sch.yao", "*.sch.json", "*.sch.jsonc"}
-	return application.App.Walk("schedules", func(root, file string, isdir bool) error {
+	err := application.App.Walk("schedules", func(root, file string, isdir bool) error {
 		if isdir {
 			return nil
 		}
 		_, err := schedule.Load(file, share.ID(root, file))
+		if err != nil {
+			messages = append(messages, err.Error())
+		}
 		return err
 	}, exts...)
+
+	if len(messages) > 0 {
+		return fmt.Errorf(strings.Join(messages, ";\n"))
+	}
+	return err
+}
+
+// Start schedules
+func Start() {
+	for name, sch := range schedule.Schedules {
+		sch.Start()
+		log.Info("[Schedule] %s start", name)
+	}
+}
+
+// Stop schedules
+func Stop() {
+	for name, sch := range schedule.Schedules {
+		sch.Stop()
+		log.Info("[Schedule] %s stop", name)
+	}
 }
diff --git a/schedule/schedule_test.go b/schedule/schedule_test.go
index af0fbd0d..9ef0aaf0 100644
--- a/schedule/schedule_test.go
+++ b/schedule/schedule_test.go
@@ -21,6 +21,15 @@ func TestLoad(t *testing.T) {
 	check(t)
 }
 
+func TestStartStop(t *testing.T) {
+	test.Prepare(t, config.Conf)
+	defer test.Clean()
+
+	Load(config.Conf)
+	Start()
+	defer Stop()
+}
+
 func check(t *testing.T) {
 	ids := map[string]bool{}
 	for id := range schedule.Schedules {
diff --git a/task/task.go b/task/task.go
index 53c12fae..ef6fe9fc 100644
--- a/task/task.go
+++ b/task/task.go
@@ -1,20 +1,49 @@
 package task
 
 import (
+	"fmt"
+	"strings"
+
 	"github.com/yaoapp/gou/application"
 	"github.com/yaoapp/gou/task"
+	"github.com/yaoapp/kun/log"
 	"github.com/yaoapp/yao/config"
 	"github.com/yaoapp/yao/share"
 )
 
 // Load load task
 func Load(cfg config.Config) error {
+	messages := []string{}
 	exts := []string{"*.yao", "*.json", "*.jsonc"}
-	return application.App.Walk("tasks", func(root, file string, isdir bool) error {
+	err := application.App.Walk("tasks", func(root, file string, isdir bool) error {
 		if isdir {
 			return nil
 		}
 		_, err := task.Load(file, share.ID(root, file))
+		if err != nil {
+			messages = append(messages, err.Error())
+		}
 		return err
 	}, exts...)
+
+	if len(messages) > 0 {
+		return fmt.Errorf(strings.Join(messages, ";\n"))
+	}
+	return err
+}
+
+// Start tasks
+func Start() {
+	for name, t := range task.Tasks {
+		go t.Start()
+		log.Info("[Task] %s start", name)
+	}
+}
+
+// Stop tasks
+func Stop() {
+	for name, t := range task.Tasks {
+		t.Stop()
+		log.Info("[Task] %s stop", name)
+	}
 }
diff --git a/task/task_test.go b/task/task_test.go
index 1cb0cc16..c2d5dee0 100644
--- a/task/task_test.go
+++ b/task/task_test.go
@@ -17,6 +17,15 @@ func TestLoad(t *testing.T) {
 	check(t)
 }
 
+func TestStartStop(t *testing.T) {
+	test.Prepare(t, config.Conf)
+	defer test.Clean()
+
+	Load(config.Conf)
+	Start()
+	defer Stop()
+}
+
 func check(t *testing.T) {
 	ids := map[string]bool{}
 	for id := range task.Tasks {