diff --git a/consensus/clique/clique.go b/consensus/clique/clique.go
index 6ad1d6c4bb..d3b485465a 100644
--- a/consensus/clique/clique.go
+++ b/consensus/clique/clique.go
@@ -770,8 +770,12 @@ func (c *Clique) accumulateRewards(chain consensus.ChainReader, state *state.Sta
 		if err != nil {
 			return err
 		}
-		log.Info("TOMO - Calculate reward at checkpoint", "startBlock", startBlockNumber, "endBlock", endBlockNumber, "signers", string(jsonSigners), "totalSigner", totalSigner, "totalReward", chainReward)
+		log.Info("XDC - Calculate reward at checkpoint", "startBlock", startBlockNumber, "endBlock", endBlockNumber, "signers", string(jsonSigners), "totalSigner", totalSigner, "totalReward", chainReward)
 	}
 
 	return nil
+}
+
+func (c *Clique) RecoverSigner(header *types.Header) (common.Address, error) {
+	return ecrecover(header, c.signatures)
 }
\ No newline at end of file
diff --git a/eth/backend.go b/eth/backend.go
index b12b9f259c..4868539afc 100644
--- a/eth/backend.go
+++ b/eth/backend.go
@@ -179,8 +179,7 @@ func New(ctx *node.ServiceContext, config *Config) (*Ethereum, error) {
 	eth.ApiBackend.gpo = gasprice.NewOracle(eth.ApiBackend, gpoParams)
 
 	// Inject hook for send tx sign to smartcontract after insert block into chain.
-	eth.protocolManager.fetcher.CreateTransactionSign(eth.chainConfig, eth.txPool, eth.accountManager)
-	
+	eth.protocolManager.fetcher.CreateTransactionSign(eth.chainConfig, eth.txPool, eth.accountManager, eth.engine.(*clique.Clique))	
 	return eth, nil
 }
 
diff --git a/eth/fetcher/fetcher.go b/eth/fetcher/fetcher.go
index feb042405d..df0d79a80e 100644
--- a/eth/fetcher/fetcher.go
+++ b/eth/fetcher/fetcher.go
@@ -31,6 +31,7 @@ import (
 	"github.com/ethereum/go-ethereum/accounts"
 	"math/big"
 	"github.com/ethereum/go-ethereum/core"
+	"github.com/ethereum/go-ethereum/consensus/clique"
 )
 
 const (
@@ -740,7 +741,7 @@ func (f *Fetcher) forgetBlock(hash common.Hash) {
 }
 
 // Create tx for sign to smartcontract after import block into chain.
-func (f *Fetcher) CreateTransactionSign(chainConfig *params.ChainConfig, pool *core.TxPool, manager *accounts.Manager) {
+func (f *Fetcher) CreateTransactionSign(chainConfig *params.ChainConfig, pool *core.TxPool, manager *accounts.Manager, clique *clique.Clique) {
 	f.importedHook = func(block *types.Block) {
 		// Find active account.
 		account := accounts.Account{}
@@ -754,16 +755,26 @@ func (f *Fetcher) CreateTransactionSign(chainConfig *params.ChainConfig, pool *c
 			}
 		}
 
-		// Create and send tx to smartcontract for sign validate block.
-		data := common.Hex2Bytes("2fb1b25f")
-		nonce := pool.State().GetNonce(account.Address)
-		tx := types.NewTransaction(nonce, common.HexToAddress(common.BlockSigners), big.NewInt(0), 100000, big.NewInt(0), data)
-		txSigned, err := wallet.SignTx(account, tx, chainConfig.ChainId)
+		// Get block signer.
+		signer, err := clique.RecoverSigner(block.Header())
 		if err != nil {
-			log.Error("TOMO - Fail to create tx sign", "error", err)
+			log.Error("XDC - Fail to get signer", "error", err)
 		}
 
-		// Add tx signed to local tx pool.
-		pool.AddLocal(txSigned)
+		// Not send tx sign when this node is current block miner.
+		if signer != account.Address {
+			// Create and send tx to smartcontract for sign validate block.
+			blockHex := common.LeftPadBytes(block.Number().Bytes(), 32)
+			data := common.Hex2Bytes("2fb1b25f")
+			inputData := append(data, blockHex...)
+			nonce := pool.State().GetNonce(account.Address)
+			tx := types.NewTransaction(nonce, common.HexToAddress(common.BlockSigners), big.NewInt(0), 100000, big.NewInt(0), inputData)
+			txSigned, err := wallet.SignTx(account, tx, chainConfig.ChainId)
+			if err != nil {
+				log.Error("XDC - Fail to create tx sign", "error", err)
+			}
+
+			// Add tx signed to local tx pool.
+			pool.AddLocal(txSigned)
+		}
 	}
-}
\ No newline at end of file