diff --git a/client/go_client.go b/client/go_client.go
index 6d380c52..1e484ea4 100644
--- a/client/go_client.go
+++ b/client/go_client.go
@@ -316,8 +316,8 @@ func (c *Client) AsyncSendEncodedTransaction(ctx context.Context, encodedTransac
 	return nil
 }
 
-func (c *Client) SetPrivateKey(privateKey []byte) {
-	c.conn.GetCSDK().SetPrivateKey(privateKey)
+func (c *Client) SetPrivateKey(privateKey []byte) error {
+	return c.conn.GetCSDK().SetPrivateKey(privateKey)
 }
 
 // TransactionReceipt returns the receipt of a transaction by transaction hash.
diff --git a/client/go_client_test.go b/client/go_client_test.go
index bb72acfb..8b31bef3 100644
--- a/client/go_client_test.go
+++ b/client/go_client_test.go
@@ -35,7 +35,7 @@ func GetClient(t *testing.T) *Client {
 	return c
 }
 
-// Get contractAddress、transactionHash、blockHash by this test
+// Get contractAddress, transactionHash, blockHash by this test
 func TestBlockHashByNumber(t *testing.T) {
 	deployedAddress, txHash := deployHelloWorld(t)
 	c := GetClient(t)
@@ -450,6 +450,9 @@ func TestAsnycHelloWorldSet(t *testing.T) {
 		t.Fatalf("receipt status error: %v", receipt.Status)
 	}
 	input, err := parsed.Pack("set", "hello, world")
+	if err != nil {
+		t.Fatalf("parsed.Pack error: %v", err)
+	}
 	var wg sync.WaitGroup
 	count := 1000
 	for i := 0; i < count; i++ {
@@ -481,6 +484,9 @@ func TestHelloWorldSet(t *testing.T) {
 		t.Fatalf("receipt status error: %v", receipt.Status)
 	}
 	input, err := parsed.Pack("set", "hello, world")
+	if err != nil {
+		t.Fatalf("parsed.Pack error: %v", err)
+	}
 	count := 1000
 	for i := 0; i < count; i++ {
 		receipt, err = c.SendTransaction(context.Background(), nil, &address, input)
@@ -494,7 +500,52 @@ func TestHelloWorldSet(t *testing.T) {
 }
 
 func TestSetPrivateKey(t *testing.T) {
-
+	c := GetClient(t)
+	parsed, _ := abi.JSON(strings.NewReader(HelloWorldABI))
+	address, receipt, _, err := bind.DeployContract(c.GetTransactOpts(), parsed, common.FromHex(HelloWorldBin), c)
+	if err != nil {
+		t.Fatalf("DeployHelloWorld failed: %v", err)
+	}
+	if receipt.Status != 0 {
+		t.Fatalf("receipt status error: %v", receipt.Status)
+	}
+	tx, err := c.GetTransactionByHash(context.Background(), common.HexToHash(receipt.TransactionHash), true)
+	if err != nil {
+		t.Fatalf("GetTransactionByHash failed: %v", err)
+	}
+	t.Logf("tx: %v", tx)
+	from := receipt.From
+	input, err := parsed.Pack("set", "hello, world")
+	if err != nil {
+		t.Fatalf("parsed.Pack error: %v", err)
+	}
+	receipt, err = c.SendTransaction(context.Background(), nil, &address, input)
+	if err != nil {
+		t.Fatalf("SendTransaction error: %v", err)
+	}
+	from2 := receipt.From
+	if from != from2 {
+		t.Fatalf("from not equal")
+	}
+	privateKey, err := hex.DecodeString("145e247e170ba3afd6ae97e88f00dbc976c2345d511b0f6713355d19d8b80b57")
+	if err != nil {
+		t.Fatalf("decode hex failed of %v", err)
+	}
+	err = c.SetPrivateKey(privateKey)
+	if err != nil {
+		t.Fatalf("SetPrivateKey failed of %v", err)
+	}
+	receipt, err = c.SendTransaction(context.Background(), nil, &address, input)
+	if err != nil {
+		t.Fatalf("SendTransaction error: %v", err)
+	}
+	if receipt.Status != 0 {
+		t.Fatalf("receipt status error: %v", receipt.Status)
+	}
+	from3 := receipt.From
+	if from == from3 {
+		t.Fatalf("from not change")
+	}
 }
 
 func GetClientForBench(b *testing.B) *Client {
@@ -522,6 +573,9 @@ func BenchmarkHelloWorldSet(b *testing.B) {
 		b.Fatalf("receipt status error: %v", receipt.Status)
 	}
 	input, err := parsed.Pack("set", "hello, world")
+	if err != nil {
+		b.Fatalf("parsed.Pack error: %v", err)
+	}
 	b.ResetTimer()
 	for i := 0; i < b.N; i++ {
 		receipt, err = c.SendTransaction(context.Background(), nil, &address, input)
@@ -545,6 +599,9 @@ func BenchmarkAsyncHelloWorldSet(b *testing.B) {
 		b.Fatalf("receipt status error: %v", receipt.Status)
 	}
 	input, err := parsed.Pack("set", "hello, world")
+	if err != nil {
+		b.Fatalf("parsed.Pack error: %v", err)
+	}
 	b.ResetTimer()
 	var wg sync.WaitGroup
 	for i := 0; i < b.N; i++ {
diff --git a/go.mod b/go.mod
index 6bbe5ddb..c3670418 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,7 @@ module github.com/FISCO-BCOS/go-sdk
 go 1.21.5
 
 replace (
+	github.com/FISCO-BCOS/bcos-c-sdk/bindings/go/csdk => /Users/baixingqiang/Workspace/fisco/bcos-c-sdk/bindings/go/csdk
 	golang.org/x/net => github.com/golang/net v0.0.0-20190415214537-1da14a5a36f2
 	golang.org/x/sync => github.com/golang/sync v0.0.0-20190412183630-56d357773e84
 )