diff --git a/scheduler/scheduling/scheduling.go b/scheduler/scheduling/scheduling.go
index 368c465b968..e63e8d48a2a 100644
--- a/scheduler/scheduling/scheduling.go
+++ b/scheduler/scheduling/scheduling.go
@@ -593,32 +593,6 @@ func ConstructSuccessNormalTaskResponse(candidateParents []*resource.Peer) *sche
 			}
 		}
 
-		// Set pieces to parent.
-		candidateParent.Pieces.Range(func(key, value any) bool {
-			candidateParentPiece, ok := value.(*resource.Piece)
-			if !ok {
-				candidateParent.Log.Errorf("invalid piece %s %#v", key, value)
-				return true
-			}
-
-			piece := &commonv2.Piece{
-				Number:      uint32(candidateParentPiece.Number),
-				ParentId:    &candidateParentPiece.ParentID,
-				Offset:      candidateParentPiece.Offset,
-				Length:      candidateParentPiece.Length,
-				TrafficType: &candidateParentPiece.TrafficType,
-				Cost:        durationpb.New(candidateParentPiece.Cost),
-				CreatedAt:   timestamppb.New(candidateParentPiece.CreatedAt),
-			}
-
-			if candidateParentPiece.Digest != nil {
-				piece.Digest = candidateParentPiece.Digest.String()
-			}
-
-			parent.Pieces = append(parent.Pieces, piece)
-			return true
-		})
-
 		// Set task to parent.
 		parent.Task = &commonv2.Task{
 			Id:                  candidateParent.Task.ID,
@@ -644,32 +618,6 @@ func ConstructSuccessNormalTaskResponse(candidateParents []*resource.Peer) *sche
 			parent.Task.Digest = &dgst
 		}
 
-		// Set pieces to parent task.
-		candidateParent.Task.Pieces.Range(func(key, value any) bool {
-			taskPiece, ok := value.(*resource.Piece)
-			if !ok {
-				candidateParent.Task.Log.Errorf("invalid piece %s %#v", key, value)
-				return true
-			}
-
-			piece := &commonv2.Piece{
-				Number:      uint32(taskPiece.Number),
-				ParentId:    &taskPiece.ParentID,
-				Offset:      taskPiece.Offset,
-				Length:      taskPiece.Length,
-				TrafficType: &taskPiece.TrafficType,
-				Cost:        durationpb.New(taskPiece.Cost),
-				CreatedAt:   timestamppb.New(taskPiece.CreatedAt),
-			}
-
-			if taskPiece.Digest != nil {
-				piece.Digest = taskPiece.Digest.String()
-			}
-
-			parent.Task.Pieces = append(parent.Task.Pieces, piece)
-			return true
-		})
-
 		// Set host to parent.
 		parent.Host = &commonv2.Host{
 			Id:              candidateParent.Host.ID,
diff --git a/scheduler/scheduling/scheduling_test.go b/scheduler/scheduling/scheduling_test.go
index ec5faf4e127..c790283c4e5 100644
--- a/scheduler/scheduling/scheduling_test.go
+++ b/scheduler/scheduling/scheduling_test.go
@@ -1648,20 +1648,8 @@ func TestScheduling_ConstructSuccessNormalTaskResponse(t *testing.T) {
 									Length: uint64(candidateParents[0].Range.Length),
 								},
 								Priority: candidateParents[0].Priority,
-								Pieces: []*commonv2.Piece{
-									{
-										Number:      uint32(mockPiece.Number),
-										ParentId:    &mockPiece.ParentID,
-										Offset:      mockPiece.Offset,
-										Length:      mockPiece.Length,
-										Digest:      mockPiece.Digest.String(),
-										TrafficType: &mockPiece.TrafficType,
-										Cost:        durationpb.New(mockPiece.Cost),
-										CreatedAt:   timestamppb.New(mockPiece.CreatedAt),
-									},
-								},
-								Cost:  durationpb.New(candidateParents[0].Cost.Load()),
-								State: candidateParents[0].FSM.Current(),
+								Cost:     durationpb.New(candidateParents[0].Cost.Load()),
+								State:    candidateParents[0].FSM.Current(),
 								Task: &commonv2.Task{
 									Id:                  candidateParents[0].Task.ID,
 									Type:                candidateParents[0].Task.Type,
@@ -1675,22 +1663,10 @@ func TestScheduling_ConstructSuccessNormalTaskResponse(t *testing.T) {
 									ContentLength:       uint64(candidateParents[0].Task.ContentLength.Load()),
 									PieceCount:          uint32(candidateParents[0].Task.TotalPieceCount.Load()),
 									SizeScope:           candidateParents[0].Task.SizeScope(),
-									Pieces: []*commonv2.Piece{
-										{
-											Number:      uint32(mockPiece.Number),
-											ParentId:    &mockPiece.ParentID,
-											Offset:      mockPiece.Offset,
-											Length:      mockPiece.Length,
-											Digest:      mockPiece.Digest.String(),
-											TrafficType: &mockPiece.TrafficType,
-											Cost:        durationpb.New(mockPiece.Cost),
-											CreatedAt:   timestamppb.New(mockPiece.CreatedAt),
-										},
-									},
-									State:     candidateParents[0].Task.FSM.Current(),
-									PeerCount: uint32(candidateParents[0].Task.PeerCount()),
-									CreatedAt: timestamppb.New(candidateParents[0].Task.CreatedAt.Load()),
-									UpdatedAt: timestamppb.New(candidateParents[0].Task.UpdatedAt.Load()),
+									State:               candidateParents[0].Task.FSM.Current(),
+									PeerCount:           uint32(candidateParents[0].Task.PeerCount()),
+									CreatedAt:           timestamppb.New(candidateParents[0].Task.CreatedAt.Load()),
+									UpdatedAt:           timestamppb.New(candidateParents[0].Task.UpdatedAt.Load()),
 								},
 								Host: &commonv2.Host{
 									Id:              candidateParents[0].Host.ID,