diff --git a/src/main/java/org/consenlabs/tokencore/wallet/transaction/BitcoinTransaction.java b/src/main/java/org/consenlabs/tokencore/wallet/transaction/BitcoinTransaction.java
index 3783597..6a2da2f 100755
--- a/src/main/java/org/consenlabs/tokencore/wallet/transaction/BitcoinTransaction.java
+++ b/src/main/java/org/consenlabs/tokencore/wallet/transaction/BitcoinTransaction.java
@@ -313,72 +313,6 @@ public TxSignResult signTransaction(String chainID, String password, Wallet wall
         return new TxSignResult(signedHex, txHash);
     }
 
-    public TxSignResult signBitcoinCashTransaction(String chainID, String password, Wallet wallet) {
-        collectPrvKeysAndAddress(Metadata.NONE, password, wallet);
-
-        Transaction tran = new Transaction(network);
-        //FORKID_VERSION
-        tran.setVersion(2);
-
-        byte SIGHASH_FORKID = (byte) 0x40;
-
-        long totalAmount = 0L;
-
-        for (UTXO output : getOutputs()) {
-            totalAmount += output.getAmount();
-        }
-
-        if (totalAmount < getAmount()) {
-            throw new TokenException(Messages.INSUFFICIENT_FUNDS);
-        }
-
-        //add send to output
-        tran.addOutput(Coin.valueOf(getAmount()), Address.fromBase58(network, getTo()));
-
-        //add change output
-        long changeAmount = totalAmount - (getAmount() + getFee());
-        if (changeAmount >= DUST_THRESHOLD) {
-            tran.addOutput(Coin.valueOf(changeAmount), changeAddress);
-        }
-
-        for (UTXO output : getOutputs()) {
-            tran.addInput(Sha256Hash.wrap(output.getTxHash()), output.getVout(), new Script(NumericUtil.hexToBytes(output.getScriptPubKey())));
-        }
-
-        for (int i = 0; i < getOutputs().size(); i++) {
-            UTXO output = getOutputs().get(i);
-
-            BigInteger privateKey = wallet.getMetadata().getSource().equals(Metadata.FROM_WIF) ? prvKeys.get(0) : prvKeys.get(i);
-            ECKey ecKey;
-            if (output.getAddress().equals(ECKey.fromPrivate(privateKey).toAddress(network).toBase58())) {
-                ecKey = ECKey.fromPrivate(privateKey);
-            } else if (output.getAddress().equals(ECKey.fromPrivate(privateKey, false).toAddress(network).toBase58())) {
-                ecKey = ECKey.fromPrivate(privateKey, false);
-            } else {
-                throw new TokenException(Messages.CAN_NOT_FOUND_PRIVATE_KEY);
-            }
-
-
-            TransactionInput transactionInput = tran.getInput(i);
-            Script scriptPubKey = ScriptBuilder.createOutputScript(Address.fromBase58(network, output.getAddress()));
-            Sha256Hash hash = tran.hashForSignature(i, scriptPubKey.getProgram(), SIGHASH_FORKID);
-            ECKey.ECDSASignature ecSig = ecKey.sign(hash);
-            TransactionSignature txSig = new TransactionSignature(ecSig.r, ecSig.s, SIGHASH_FORKID);
-            if (scriptPubKey.isSentToRawPubKey()) {
-                transactionInput.setScriptSig(ScriptBuilder.createInputScript(txSig));
-            } else {
-                if (!scriptPubKey.isSentToAddress()) {
-                    throw new TokenException(Messages.UNSUPPORT_SEND_TARGET);
-                }
-                transactionInput.setScriptSig(ScriptBuilder.createInputScript(txSig, ecKey));
-            }
-        }
-
-        String signedHex = NumericUtil.bytesToHex(tran.bitcoinSerialize());
-        String txHash = NumericUtil.beBigEndianHex(Hash.sha256(Hash.sha256(signedHex)));
-        return new TxSignResult(signedHex, txHash);
-    }
-
     public TxSignResult signUsdtTransaction(String chainID, String password, Wallet wallet) {
         collectPrvKeysAndAddress(Metadata.NONE, password, wallet);