diff --git a/core/blockchain.go b/core/blockchain.go
index cd6f235c2e..9240f9d3ed 100644
--- a/core/blockchain.go
+++ b/core/blockchain.go
@@ -506,6 +506,10 @@ func (bc *BlockChain) insert(block *types.Block) {
 	}
 	bc.currentBlock.Store(block)
 
+	// save cache BlockSigners
+	engine := bc.Engine().(*posv.Posv)
+	engine.CacheData(block.Header(), block.Transactions(), bc.GetReceiptsByHash(block.Hash()))
+	
 	// If the block is better than our head or is on a different chain, force update heads
 	if updateHeads {
 		bc.hc.SetCurrentHeader(block.Header())