diff --git a/storage/wdpost_run.go b/storage/wdpost_run.go
index fcace70dd..f0d18d7f4 100644
--- a/storage/wdpost_run.go
+++ b/storage/wdpost_run.go
@@ -150,6 +150,15 @@ func (s *WindowPoStScheduler) checkNextRecoveries(ctx context.Context, deadline
 	if err != nil {
 		return xerrors.Errorf("checking unrecovered sectors: %w", err)
 	}
+	
+	// check some unrecovered sectors can not recovered (such as cache file is missing) 
+	sbfCount, err := sbf.Count()
+	if err != nil {
+		log.Errorf(" sbf.Count() | %v", err)
+	} else if sbfCount == 0 {
+	 	log.Warnf("unrecovered exists sbf.Count() sectors can not recovery, exit this function.", err)
+	 return nil
+	}
 
 	params := &miner.DeclareFaultsRecoveredParams{
 		Recoveries: []miner.RecoveryDeclaration{{Deadline: deadline, Sectors: sbf}},