diff --git a/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/figures/DMA_test.png b/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/figures/DMA_test.png
new file mode 100644
index 0000000000000000000000000000000000000000..66df90f6cf8ac6ee1e5b39ce000ae6d45d259aad
Binary files /dev/null and b/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/figures/DMA_test.png differ
diff --git a/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/uart.md b/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/uart.md
index 4977452cd661121a51d5f72a0ca4cbc1e0a03ff4..a030cd2108be6ad1af42e2746f9d3ee85f0368c0 100644
--- a/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/uart.md
+++ b/rt-thread-version/rt-thread-standard/programming-manual/device/uart/uart_v1/uart.md
@@ -65,7 +65,7 @@ serial = rt_device_find(SAMPLE_UART_NAME);
 rt_err_t rt_device_open(rt_device_t dev, rt_uint16_t oflags);
 ```
 
-| **参数**   | **描述**                         |
+| **参数**   | **描述**                         |![输入图片说明](figures/DMA_test.png)
 | ---------- | ------------------------------- |
 | dev        | 设备句柄                        |
 | oflags     | 设备模式标志                     |