diff --git a/client.go b/client.go
index 771d820..1f684e1 100644
--- a/client.go
+++ b/client.go
@@ -233,6 +233,7 @@ func (this *Client) GetMinute(code string) (*protocol.MinuteResp, error) {
 
 // GetMinuteTrade 获取分时交易详情,服务器最多返回1800条,count-start<=1800
 func (this *Client) GetMinuteTrade(code string, start, count uint16) (*protocol.MinuteTradeResp, error) {
+	code = protocol.AddPrefix(code)
 	f, err := protocol.MMinuteTrade.Frame(code, start, count)
 	if err != nil {
 		return nil, err
@@ -267,6 +268,7 @@ func (this *Client) GetMinuteTradeAll(code string) (*protocol.MinuteTradeResp, e
 // 只能获取昨天及之前的数据,服务器最多返回2000条,count-start<=2000,如果日期输入错误,则返回0
 // 历史数据sz000001在20241116只能查到21111112,13年差几天,3141天,或者其他规则
 func (this *Client) GetHistoryMinuteTrade(date, code string, start, count uint16) (*protocol.HistoryMinuteTradeResp, error) {
+	code = protocol.AddPrefix(code)
 	f, err := protocol.MHistoryMinuteTrade.Frame(date, code, start, count)
 	if err != nil {
 		return nil, err
@@ -299,6 +301,7 @@ func (this *Client) GetHistoryMinuteTradeAll(date, code string) (*protocol.Histo
 
 // GetKline 获取k线数据,推荐收盘之后获取,否则会获取到当天的数据
 func (this *Client) GetKline(Type uint8, code string, start, count uint16) (*protocol.KlineResp, error) {
+	code = protocol.AddPrefix(code)
 	f, err := protocol.MKline.Frame(Type, code, start, count)
 	if err != nil {
 		return nil, err
diff --git a/protocol/unit.go b/protocol/unit.go
index 156711a..c6218e8 100644
--- a/protocol/unit.go
+++ b/protocol/unit.go
@@ -50,6 +50,7 @@ func UTF8ToGBK(text []byte) []byte {
 }
 
 func DecodeCode(code string) (Exchange, string, error) {
+	code = AddPrefix(code)
 	if len(code) != 8 {
 		return 0, "", fmt.Errorf("股票代码长度错误,例如:SZ000001")
 	}
@@ -212,3 +213,18 @@ func IsStock(code string) bool {
 	}
 	return false
 }
+
+// AddPrefix 添加股票代码前缀,针对股票生效,例如000001,会增加前缀sz000001(平安银行),而不是sh000001(上证指数)
+func AddPrefix(code string) string {
+	if len(code) == 6 {
+		switch {
+		case code[:1] == "6":
+			code = ExchangeSH.String() + code
+		case code[:1] == "0":
+			code = ExchangeSZ.String() + code
+		case code[:2] == "30":
+			code = ExchangeSZ.String() + code
+		}
+	}
+	return code
+}