diff --git a/node/node.go b/node/node.go
index 134ff628d..214de55d0 100644
--- a/node/node.go
+++ b/node/node.go
@@ -101,6 +101,10 @@ func (s *Service) DeleteCollection(ctx context.Context, lopts metav1.ListOptions
 		return xerrors.Errorf("list nodes: %w", err)
 	}
 	eg, ctx := errgroup.WithContext(ctx)
+	nsList, err := s.client.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
+	if err != nil {
+		return xerrors.Errorf("list namespaces: %w", err)
+	}
 	for _, n := range ns.Items {
 		n := n
 		eg.Go(func() error {
@@ -108,9 +112,11 @@ func (s *Service) DeleteCollection(ctx context.Context, lopts metav1.ListOptions
 			lopts := metav1.ListOptions{
 				FieldSelector: "spec.nodeName=" + n.Name,
 			}
-			// This method deletes all pods on all namespaces scheduled to the specified node.
-			if err := s.podService.DeleteCollection(ctx, metav1.NamespaceAll, lopts); err != nil {
-				return xerrors.Errorf("failed to delete pods on node %s: %w\n", n.Name, err)
+			// This method deletes all pods on specified namespace scheduled to the specified node.
+			for _, ns := range nsList.Items {
+				if err := s.podService.DeleteCollection(ctx, ns.GetName(), lopts); err != nil {
+					return xerrors.Errorf("failed to delete pods on node %s: %w\n", n.Name, err)
+				}
 			}
 
 			// delete specific node
diff --git a/node/node_test.go b/node/node_test.go
index 36cf8737c..467b0a12f 100644
--- a/node/node_test.go
+++ b/node/node_test.go
@@ -178,6 +178,11 @@ func TestService_DeleteCollection(t *testing.T) {
 			},
 			prepareFakeClientSetFn: func() *fake.Clientset {
 				c := fake.NewSimpleClientset()
+				c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "default",
+					},
+				}, metav1.CreateOptions{})
 				c.CoreV1().Nodes().Create(context.Background(), &corev1.Node{
 					ObjectMeta: metav1.ObjectMeta{
 						Name: "node1",
@@ -204,6 +209,11 @@ func TestService_DeleteCollection(t *testing.T) {
 			},
 			prepareFakeClientSetFn: func() *fake.Clientset {
 				c := fake.NewSimpleClientset()
+				c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "default",
+					},
+				}, metav1.CreateOptions{})
 				c.CoreV1().Nodes().Create(context.Background(), &corev1.Node{
 					ObjectMeta: metav1.ObjectMeta{
 						Name: "node1",
@@ -225,6 +235,19 @@ func TestService_DeleteCollection(t *testing.T) {
 			},
 			prepareFakeClientSetFn: func() *fake.Clientset {
 				c := fake.NewSimpleClientset()
+				c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "default",
+					},
+				}, metav1.CreateOptions{})
+				c.CoreV1().Pods("default").Create(context.Background(), &corev1.Pod{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "pod1",
+					},
+					Spec: corev1.PodSpec{
+						NodeName: "node1",
+					},
+				}, metav1.CreateOptions{})
 				c.CoreV1().Nodes().Create(context.Background(), &corev1.Node{
 					ObjectMeta: metav1.ObjectMeta{
 						Name: "node1",
@@ -237,6 +260,59 @@ func TestService_DeleteCollection(t *testing.T) {
 			},
 			wantErr: true,
 		},
+		{
+			name: "delete nodes with multiple existing namespaced pods",
+			preparePodServiceMockFn: func(m *mock_node.MockPodService) {
+				m.EXPECT().DeleteCollection(gomock.Any(), "default1", metav1.ListOptions{
+					FieldSelector: "spec.nodeName=node1",
+				}).Return(nil)
+				m.EXPECT().DeleteCollection(gomock.Any(), "default2", metav1.ListOptions{
+					FieldSelector: "spec.nodeName=node1",
+				}).Return(nil)
+				m.EXPECT().DeleteCollection(gomock.Any(), "default3", metav1.ListOptions{
+					FieldSelector: "spec.nodeName=node1",
+				}).Return(errors.New("error"))
+			},
+			prepareFakeClientSetFn: func() *fake.Clientset {
+				c := fake.NewSimpleClientset()
+				c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "default1",
+					},
+				}, metav1.CreateOptions{})
+				c.CoreV1().Namespaces().Create(context.Background(), &corev1.Namespace{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "default2",
+					},
+				}, metav1.CreateOptions{})
+				c.CoreV1().Pods("default1").Create(context.Background(), &corev1.Pod{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "pod1",
+					},
+					Spec: corev1.PodSpec{
+						NodeName: "node1",
+					},
+				}, metav1.CreateOptions{})
+				c.CoreV1().Pods("default2").Create(context.Background(), &corev1.Pod{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "pod2",
+					},
+					Spec: corev1.PodSpec{
+						NodeName: "node1",
+					},
+				}, metav1.CreateOptions{})
+				c.CoreV1().Nodes().Create(context.Background(), &corev1.Node{
+					ObjectMeta: metav1.ObjectMeta{
+						Name: "node1",
+					},
+				}, metav1.CreateOptions{})
+				return c
+			},
+			lopts: metav1.ListOptions{
+				FieldSelector: "spec.nodeName!=",
+			},
+			wantErr: false,
+		},
 	}
 	for _, tt := range tests {
 		tt := tt
diff --git a/reset/reset.go b/reset/reset.go
index 42d9ad6c8..af251c5c9 100644
--- a/reset/reset.go
+++ b/reset/reset.go
@@ -51,16 +51,23 @@ func NewResetService(
 // Reset cleans up all resources and scheduler configuration.
 func (s *Service) Reset(ctx context.Context) error {
 	eg, ctx := errgroup.WithContext(ctx)
+	nsList, err := s.client.CoreV1().Namespaces().List(ctx, metav1.ListOptions{})
+	if err != nil {
+		return xerrors.Errorf("list namespaces: %w", err)
+	}
 	for k, ds := range s.deleteServicesForNamespacedResources {
 		ds := ds
 		k := k
-		eg.Go(func() error {
-			// this method deletes all resources on all namespaces.
-			if err := ds.DeleteCollection(ctx, metav1.NamespaceAll, metav1.ListOptions{}); err != nil {
-				return xerrors.Errorf("delete collecton of %s service: %w", k, err)
-			}
-			return nil
-		})
+		for _, ns := range nsList.Items {
+			ns := ns
+			eg.Go(func() error {
+				// this method deletes all resources on specified namespace.
+				if err := ds.DeleteCollection(ctx, ns.GetName(), metav1.ListOptions{}); err != nil {
+					return xerrors.Errorf("delete collecton of %s service: %w", k, err)
+				}
+				return nil
+			})
+		}
 	}
 	for k, ds := range s.deleteServices {
 		ds := ds