diff --git a/docs/Advanced_development/en/QuecPythonBus/uart.md b/docs/Advanced_development/en/QuecPythonBus/uart.md
index 58759971b4d33005b09e42cb69732d87c131982f..de0ccf968f7328f4b7f706070e917ad6a2b627f1 100644
--- a/docs/Advanced_development/en/QuecPythonBus/uart.md
+++ b/docs/Advanced_development/en/QuecPythonBus/uart.md
@@ -83,8 +83,8 @@ if __name__ == "__main__":
     uart_x = UART(UART.UART2, 115200, 8, 0, 1, 0)
     usbcdc = UART(UART.UART3, 115200, 8, 0, 1, 0)  # It is unvalid to set the baudrate, while in communication, any baudrate is available
 
-    uart_x.write("Grey_测试")
-    usbcdc.write("Grey_测试") 
+    uart_x.write("Grey_test")
+    usbcdc.write("Grey_test") 
 
     _thread.start_new_thread(uart_x_read, ())  # Create a thread to listen for receiving UART messages
     _thread.start_new_thread(usbcdc_read, ())  # Create a thread to listen for receiving CDC messages