diff --git a/src/common/dao/replication_job.go b/src/common/dao/replication_job.go
index d72a4796c..9aa3634bd 100644
--- a/src/common/dao/replication_job.go
+++ b/src/common/dao/replication_job.go
@@ -312,7 +312,7 @@ func GetRepJobByPolicy(policyID int64) ([]*models.RepJob, error) {
 
 // FilterRepJobs ...
 func FilterRepJobs(policyID int64, repository string, status []string, startTime,
-	endTime *time.Time, limit, offset int64) ([]*models.RepJob, int64, error) {
+	endTime *time.Time, limit, offset int64, operations ...string) ([]*models.RepJob, int64, error) {
 
 	jobs := []*models.RepJob{}
 
@@ -333,6 +333,9 @@ func FilterRepJobs(policyID int64, repository string, status []string, startTime
 	if endTime != nil {
 		qs = qs.Filter("CreationTime__lte", endTime)
 	}
+	if len(operations) != 0 {
+		qs = qs.Filter("Operation__in", operations)
+	}
 
 	total, err := qs.Count()
 	if err != nil {
diff --git a/src/common/models/job.go b/src/common/models/job.go
index 11ea3d00f..ef5a9a7e3 100644
--- a/src/common/models/job.go
+++ b/src/common/models/job.go
@@ -31,4 +31,6 @@ const (
 	JobRetrying string = "retrying"
 	//JobContinue is the status returned by statehandler to tell statemachine to move to next possible state based on trasition table.
 	JobContinue string = "_continue"
+	// JobScheduled ...
+	JobScheduled string = "scheduled"
 )
diff --git a/src/common/models/replication_job.go b/src/common/models/replication_job.go
index f81afa7b2..8843c7470 100644
--- a/src/common/models/replication_job.go
+++ b/src/common/models/replication_job.go
@@ -26,6 +26,8 @@ const (
 	RepOpTransfer string = "transfer"
 	//RepOpDelete represents the operation of a job to remove repository from a remote registry/harbor instance.
 	RepOpDelete string = "delete"
+	//RepOpSchedule represents the operation of a job to schedule the real replication process
+	RepOpSchedule string = "schedule"
 	//UISecretCookie is the cookie name to contain the UI secret
 	UISecretCookie string = "secret"
 	//RepTargetTable is the table name for replication targets
diff --git a/src/jobservice/job/impl/replication/replicate.go b/src/jobservice/job/impl/replication/replicate.go
index afd4f15fa..5e7bb27ef 100644
--- a/src/jobservice/job/impl/replication/replicate.go
+++ b/src/jobservice/job/impl/replication/replicate.go
@@ -81,7 +81,7 @@ func (r *Replicator) replicate() error {
 		r.logger.Errorf("failed to send the replication request to %s: %v", r.url, err)
 		return err
 	}
-	r.logger.Infof("the replication request has been sent to %s successfully", r.url)
+	r.logger.Info("the replication request has been sent successfully")
 	return nil
 
 }
diff --git a/src/replication/core/controller.go b/src/replication/core/controller.go
index a7b22597a..3db5671d2 100644
--- a/src/replication/core/controller.go
+++ b/src/replication/core/controller.go
@@ -96,22 +96,6 @@ func (ctl *DefaultController) Init() error {
 		return nil
 	}
 
-	policies, err := ctl.policyManager.GetPolicies(models.QueryParameter{})
-	if err != nil {
-		return err
-	}
-	if policies != nil && len(policies.Policies) > 0 {
-		for _, policy := range policies.Policies {
-			if policy.Trigger == nil || policy.Trigger.Kind != replication.TriggerKindSchedule {
-				continue
-			}
-
-			if err := ctl.triggerManager.SetupTrigger(policy); err != nil {
-				log.Errorf("failed to setup trigger for policy %v: %v", policy, err)
-			}
-		}
-	}
-
 	//Initialize sourcer
 	ctl.sourcer.Init()
 
diff --git a/src/replication/trigger/manager_test.go b/src/replication/trigger/manager_test.go
index d02d9ee28..02500e9a2 100644
--- a/src/replication/trigger/manager_test.go
+++ b/src/replication/trigger/manager_test.go
@@ -19,6 +19,8 @@ import (
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+	"github.com/vmware/harbor/src/common/dao"
+	"github.com/vmware/harbor/src/common/utils/test"
 	"github.com/vmware/harbor/src/replication"
 	"github.com/vmware/harbor/src/replication/models"
 )
@@ -66,30 +68,26 @@ func TestCreateTrigger(t *testing.T) {
 }
 
 func TestSetupTrigger(t *testing.T) {
+	dao.DefaultDatabaseWatchItemDAO = &test.FakeWatchItemDAO{}
+
 	mgr := NewManager(1)
 
 	err := mgr.SetupTrigger(&models.ReplicationPolicy{
 		Trigger: &models.Trigger{
-			Kind: replication.TriggerKindSchedule,
-			ScheduleParam: &models.ScheduleParam{
-				Type:    replication.TriggerScheduleDaily,
-				Offtime: 1,
-			},
+			Kind: replication.TriggerKindImmediate,
 		},
 	})
 	assert.Nil(t, err)
 }
 
 func TestUnsetTrigger(t *testing.T) {
+	dao.DefaultDatabaseWatchItemDAO = &test.FakeWatchItemDAO{}
+
 	mgr := NewManager(1)
 
 	err := mgr.UnsetTrigger(&models.ReplicationPolicy{
 		Trigger: &models.Trigger{
-			Kind: replication.TriggerKindSchedule,
-			ScheduleParam: &models.ScheduleParam{
-				Type:    replication.TriggerScheduleDaily,
-				Offtime: 1,
-			},
+			Kind: replication.TriggerKindImmediate,
 		},
 	})
 	assert.Nil(t, err)
diff --git a/src/replication/trigger/schedule.go b/src/replication/trigger/schedule.go
index 5d5b24aad..eeefbd159 100644
--- a/src/replication/trigger/schedule.go
+++ b/src/replication/trigger/schedule.go
@@ -2,12 +2,17 @@ package trigger
 
 import (
 	"fmt"
-	"time"
+	"net/http"
 
-	"github.com/vmware/harbor/src/common/scheduler"
-	"github.com/vmware/harbor/src/common/scheduler/policy"
-	replication_task "github.com/vmware/harbor/src/common/scheduler/task/replication"
+	"github.com/vmware/harbor/src/common/dao"
+	common_http "github.com/vmware/harbor/src/common/http"
+	"github.com/vmware/harbor/src/common/job"
+	job_models "github.com/vmware/harbor/src/common/job/models"
+	"github.com/vmware/harbor/src/common/models"
+	"github.com/vmware/harbor/src/common/utils/log"
 	"github.com/vmware/harbor/src/replication"
+	"github.com/vmware/harbor/src/ui/config"
+	"github.com/vmware/harbor/src/ui/utils"
 )
 
 //ScheduleTrigger will schedule a alternate policy to provide 'daily' and 'weekly' trigger ways.
@@ -29,30 +34,79 @@ func (st *ScheduleTrigger) Kind() string {
 
 //Setup is the implementation of same method defined in Trigger interface
 func (st *ScheduleTrigger) Setup() error {
-	config := &policy.AlternatePolicyConfiguration{}
+	metadata := &job_models.JobMetadata{
+		JobKind: job.JobKindPeriodic,
+	}
 	switch st.params.Type {
 	case replication.TriggerScheduleDaily:
-		config.Duration = 24 * 3600 * time.Second
-		config.OffsetTime = st.params.Offtime
+		h, m, s := parseOfftime(st.params.Offtime)
+		metadata.Cron = fmt.Sprintf("%d %d %d * * *", s, m, h)
 	case replication.TriggerScheduleWeekly:
-		config.Duration = 7 * 24 * 3600 * time.Second
-		config.OffsetTime = st.params.Offtime
-		config.Weekday = st.params.Weekday
+		h, m, s := parseOfftime(st.params.Offtime)
+		metadata.Cron = fmt.Sprintf("%d %d %d * * %d", s, m, h, st.params.Weekday%7)
 	default:
 		return fmt.Errorf("unsupported schedual trigger type: %s", st.params.Type)
 	}
 
-	schedulePolicy := policy.NewAlternatePolicy(assembleName(st.params.PolicyID), config)
-	attachTask := replication_task.NewTask(st.params.PolicyID)
-	schedulePolicy.AttachTasks(attachTask)
-	return scheduler.DefaultScheduler.Schedule(schedulePolicy)
+	id, err := dao.AddRepJob(models.RepJob{
+		Repository: "N/A",
+		PolicyID:   st.params.PolicyID,
+		Operation:  models.RepOpSchedule,
+	})
+	if err != nil {
+		return err
+	}
+	uuid, err := utils.GetJobServiceClient().SubmitJob(&job_models.JobData{
+		Name: job.ImageReplicate,
+		Parameters: map[string]interface{}{
+			"policy_id": st.params.PolicyID,
+			"url":       config.InternalUIURL(),
+			"insecure":  true,
+		},
+		Metadata: metadata,
+		StatusHook: fmt.Sprintf("%s/service/notifications/jobs/replication/%d",
+			config.InternalUIURL(), id),
+	})
+	if err != nil {
+		// clean up the job record in database
+		if e := dao.DeleteRepJob(id); e != nil {
+			log.Errorf("failed to delete job %d: %v", id, e)
+		}
+		return err
+	}
+	return dao.SetRepJobUUID(id, uuid)
 }
 
 //Unset is the implementation of same method defined in Trigger interface
 func (st *ScheduleTrigger) Unset() error {
-	return scheduler.DefaultScheduler.UnSchedule(assembleName(st.params.PolicyID))
+	jobs, _, err := dao.FilterRepJobs(st.params.PolicyID, "", nil, nil, nil, 0, 0, models.RepOpSchedule)
+	if err != nil {
+		return err
+	}
+	if len(jobs) != 1 {
+		log.Warningf("only one job should be found, but found %d now", len(jobs))
+	}
+
+	for _, j := range jobs {
+		if err = utils.GetJobServiceClient().PostAction(j.UUID, job.JobActionStop); err != nil {
+			// if the job specified by UUID is not found in jobservice, delete the job
+			// record from database
+			if e, ok := err.(*common_http.Error); !ok || e.Code != http.StatusNotFound {
+				return err
+			}
+		}
+		if err = dao.DeleteRepJob(j.ID); err != nil {
+			return err
+		}
+	}
+	return nil
 }
 
-func assembleName(policyID int64) string {
-	return fmt.Sprintf("replication_policy_%d", policyID)
+func parseOfftime(offtime int64) (hour, minite, second int) {
+	offtime = offtime % (3600 * 24)
+	hour = int(offtime / 3600)
+	offtime = offtime % 3600
+	minite = int(offtime / 60)
+	second = int(offtime % 60)
+	return
 }
diff --git a/src/replication/trigger/schedule_test.go b/src/replication/trigger/schedule_test.go
index 5fecd934b..13dcc36b6 100644
--- a/src/replication/trigger/schedule_test.go
+++ b/src/replication/trigger/schedule_test.go
@@ -16,48 +16,35 @@ package trigger
 
 import (
 	"testing"
-	"time"
 
 	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"github.com/vmware/harbor/src/common/scheduler"
 	"github.com/vmware/harbor/src/replication"
 )
 
-func TestAssembleName(t *testing.T) {
-	assert.Equal(t, "replication_policy_1", assembleName(1))
-}
-
 func TestKindOfScheduleTrigger(t *testing.T) {
 	trigger := NewScheduleTrigger(ScheduleParam{})
 	assert.Equal(t, replication.TriggerKindSchedule, trigger.Kind())
 }
 
-func TestSetupAndUnSetOfScheduleTrigger(t *testing.T) {
-	// invalid schedule param
-	trigger := NewScheduleTrigger(ScheduleParam{})
-	assert.NotNil(t, trigger.Setup())
+func TestParseOfftime(t *testing.T) {
+	cases := []struct {
+		offtime int64
+		hour    int
+		minite  int
+		second  int
+	}{
+		{0, 0, 0, 0},
+		{1, 0, 0, 1},
+		{60, 0, 1, 0},
+		{3600, 1, 0, 0},
+		{3661, 1, 1, 1},
+		{3600*24 + 60, 0, 1, 0},
+	}
 
-	// valid schedule param
-	var policyID int64 = 1
-	trigger = NewScheduleTrigger(ScheduleParam{
-		BasicParam: BasicParam{
-			PolicyID: policyID,
-		},
-		Type:    replication.TriggerScheduleWeekly,
-		Weekday: (int8(time.Now().Weekday()) + 1) % 7,
-		Offtime: 0,
-	})
-
-	count := scheduler.DefaultScheduler.PolicyCount()
-	require.Nil(t, scheduler.DefaultScheduler.GetPolicy(assembleName(policyID)))
-
-	require.Nil(t, trigger.Setup())
-
-	assert.Equal(t, count+1, scheduler.DefaultScheduler.PolicyCount())
-	assert.NotNil(t, scheduler.DefaultScheduler.GetPolicy(assembleName(policyID)))
-
-	require.Nil(t, trigger.Unset())
-	assert.Equal(t, count, scheduler.DefaultScheduler.PolicyCount())
-	assert.Nil(t, scheduler.DefaultScheduler.GetPolicy(assembleName(policyID)))
+	for _, c := range cases {
+		h, m, s := parseOfftime(c.offtime)
+		assert.Equal(t, c.hour, h)
+		assert.Equal(t, c.minite, m)
+		assert.Equal(t, c.second, s)
+	}
 }
diff --git a/src/ui/api/replication.go b/src/ui/api/replication.go
index be89fcca1..c920520bf 100644
--- a/src/ui/api/replication.go
+++ b/src/ui/api/replication.go
@@ -64,7 +64,8 @@ func (r *ReplicationAPI) Post() {
 	}
 
 	_, count, err := dao.FilterRepJobs(replication.PolicyID, "",
-		[]string{models.JobRunning, models.JobPending}, nil, nil, 1, 0)
+		[]string{models.JobRunning, models.JobPending}, nil, nil, 1, 0,
+		models.RepOpTransfer, models.RepOpDelete)
 	if err != nil {
 		r.HandleInternalServerError(fmt.Sprintf("failed to filter jobs of policy %d: %v",
 			replication.PolicyID, err))
diff --git a/src/ui/service/notifications/jobs/handler.go b/src/ui/service/notifications/jobs/handler.go
index 87f126f0c..ad2cb682a 100644
--- a/src/ui/service/notifications/jobs/handler.go
+++ b/src/ui/service/notifications/jobs/handler.go
@@ -32,6 +32,7 @@ var statusMap = map[string]string{
 	job.JobServiceStatusCancelled: models.JobCanceled,
 	job.JobServiceStatusError:     models.JobError,
 	job.JobServiceStatusSuccess:   models.JobFinished,
+	job.JobServiceStatusScheduled: models.JobScheduled,
 }
 
 // Handler handles reqeust on /service/notifications/jobs/*, which listens to the webhook of jobservice.
@@ -58,9 +59,9 @@ func (h *Handler) Prepare() {
 		h.Abort("200")
 		return
 	}
-	log.Debugf("Received scan job status update for job: %d, status: %s", id, data.Status)
 	status, ok := statusMap[data.Status]
 	if !ok {
+		log.Debugf("drop the job status update event: job id-%d, status-%s", id, status)
 		h.Abort("200")
 		return
 	}
@@ -69,6 +70,7 @@ func (h *Handler) Prepare() {
 
 // HandleScan handles the webhook of scan job
 func (h *Handler) HandleScan() {
+	log.Debugf("received san job status update event: job-%d, status-%s", h.id, h.status)
 	if err := dao.UpdateScanJobStatus(h.id, h.status); err != nil {
 		log.Errorf("Failed to update job status, id: %d, status: %s", h.id, h.status)
 		h.HandleInternalServerError(err.Error())
@@ -78,6 +80,7 @@ func (h *Handler) HandleScan() {
 
 //HandleReplication handles the webhook of replication job
 func (h *Handler) HandleReplication() {
+	log.Debugf("received replication job status update event: job-%d, status-%s", h.id, h.status)
 	if err := dao.UpdateRepJobStatus(h.id, h.status); err != nil {
 		log.Errorf("Failed to update job status, id: %d, status: %s", h.id, h.status)
 		h.HandleInternalServerError(err.Error())