diff --git a/changelogs/unreleased/5217-lilongfeng0902 b/changelogs/unreleased/5217-lilongfeng0902
new file mode 100644
index 0000000000..819069ac3e
--- /dev/null
+++ b/changelogs/unreleased/5217-lilongfeng0902
@@ -0,0 +1 @@
+check vsc null pointer
\ No newline at end of file
diff --git a/pkg/controller/backup_controller.go b/pkg/controller/backup_controller.go
index 59080abf37..33cd1ca3ed 100644
--- a/pkg/controller/backup_controller.go
+++ b/pkg/controller/backup_controller.go
@@ -951,6 +951,10 @@ func (c *backupController) deleteVolumeSnapshot(volumeSnapshots []*snapshotv1api
 			if vs.Status.BoundVolumeSnapshotContentName != nil &&
 				len(*vs.Status.BoundVolumeSnapshotContentName) > 0 {
 				vsc = vscMap[*vs.Status.BoundVolumeSnapshotContentName]
+				if nil == vsc {
+					logger.Errorf("Not find %s from the vscMap", vs.Status.BoundVolumeSnapshotContentName)
+					return
+				}
 				if vsc.Spec.DeletionPolicy == snapshotv1api.VolumeSnapshotContentDelete {
 					modifyVSCFlag = true
 				}