diff --git a/core/tx_pool.go b/core/tx_pool.go
index 0c422dd99d..f97ea69351 100644
--- a/core/tx_pool.go
+++ b/core/tx_pool.go
@@ -509,7 +509,7 @@ func (pool *TxPool) local() map[common.Address]types.Transactions {
 func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	// Heuristic limit, reject transactions over 32KB to prevent DOS attacks
 	if tx.Size() > 32*1024 {
-		return ErrOversizedData
+		return fmt.Errorf("%v your txSize:%d;limitSize:%d", ErrOversizedData, tx.Size(), 32*1024)
 	}
 	// Transactions can't be negative. This may never happen using RLP decoded
 	// transactions but may occur if you create a transaction using the RPC.
@@ -518,26 +518,26 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 	}
 	// Ensure the transaction doesn't exceed the current block limit gas.
 	if pool.currentMaxGas < tx.Gas() {
-		return ErrGasLimit
+		return fmt.Errorf("%v currentMaxGas:%d;tx.Gas():%d", ErrGasLimit, pool.currentMaxGas, tx.Gas())
 	}
 	// Make sure the transaction is signed properly
 	from, err := types.Sender(pool.signer, tx)
 	if err != nil {
-		return ErrInvalidSender
+		return fmt.Errorf("%v err is:%v", ErrInvalidSender, err)
 	}
 	// Drop non-local transactions under our own minimal accepted gas price
 	local = local || pool.locals.contains(from) // account may be local even if the transaction arrived from the network
 	if !local && pool.gasPrice.Cmp(tx.GasPrice()) > 0 {
-		return ErrUnderpriced
+		return fmt.Errorf("%v pool.gasPrice:%d;tx.GasPrice():%d", ErrUnderpriced, pool.gasPrice, tx.GasPrice())
 	}
 	// Ensure the transaction adheres to nonce ordering
 	if pool.currentState.GetNonce(from) > tx.Nonce() {
-		return ErrNonceTooLow
+		return fmt.Errorf("%v current pool nonce:%d;tx.Nonce():%d", ErrNonceTooLow, pool.currentState.GetNonce(from), tx.Nonce())
 	}
 	// Transactor should have enough funds to cover the costs
 	// cost == V + GP * GL
 	if pool.currentState.GetBalance(from).Cmp(tx.Cost()) < 0 {
-		return ErrInsufficientFunds
+		return fmt.Errorf("%v your balance:%d;tx.Cost():%d", ErrInsufficientFunds, pool.currentState.GetBalance(from), tx.Cost())
 	}
 	// Ensure the transaction has more gas than the basic tx fee.
 	intrGas, err := IntrinsicGas(tx.Data(), tx.To() == nil, true)
@@ -545,7 +545,7 @@ func (pool *TxPool) validateTx(tx *types.Transaction, local bool) error {
 		return err
 	}
 	if tx.Gas() < intrGas {
-		return ErrIntrinsicGas
+		return fmt.Errorf("%v your intrGas:%d;tx.Gas():%d", ErrIntrinsicGas, intrGas, tx.Gas())
 	}
 	return nil
 }