diff --git a/api/service/syncing/syncing.go b/api/service/syncing/syncing.go
index ea8072bee..88dc46fa4 100644
--- a/api/service/syncing/syncing.go
+++ b/api/service/syncing/syncing.go
@@ -536,9 +536,10 @@ func (ss *StateSync) getBlockFromLastMileBlocksByParentHash(parentHash common.Ha
 
 // UpdateBlockAndStatus ...
 func (ss *StateSync) UpdateBlockAndStatus(block *types.Block, bc *core.BlockChain, worker *worker.Worker, verifyAllSig bool) error {
-	utils.Logger().Info().Str("blockHex", bc.CurrentBlock().Hash().Hex()).Msg("[SYNC] UpdateBlockAndStatus: Current Block")
+	utils.Logger().Info().Str("blockHex", bc.CurrentBlock().Hash().Hex()).Uint64("blockNum", block.NumberU64()).Msg("[SYNC] UpdateBlockAndStatus: Current Block")
 
-	if block.NumberU64() >= bc.CurrentHeader().Number().Uint64() {
+	if block.NumberU64() != bc.CurrentHeader().Number().Uint64()+1 {
+		utils.Logger().Info().Uint64("curBlockNum", bc.CurrentHeader().Number().Uint64()).Uint64("receivedBlockNum", block.NumberU64()).Msg("[SYNC] Inappropriate block number, ignore!")
 		return nil
 	}