diff --git a/docs/en/api-reference/peripherals/parlio.rst b/docs/en/api-reference/peripherals/parlio.rst
index 02db50a41909..4046496310a2 100644
--- a/docs/en/api-reference/peripherals/parlio.rst
+++ b/docs/en/api-reference/peripherals/parlio.rst
@@ -13,8 +13,8 @@ The TX and RX driver of Parallel IO peripheral are designed separately, you can
 Application Examples
 --------------------
 
-* Simple REG LED Matrix with HUB75 interface: :example:`peripherals/parlio/parlio_tx/simple_rgb_led_matrix`.
-* Logic Analyzer: :example:`peripherals/parlio/parlio_rx/logic_analyzer`.
+* :example:`peripherals/parlio/parlio_rx/logic_analyzer` demonstrates how to implement a logic analyzer using the Parallel IO RX peripheral, which can sample data on multiple GPIOs in parallel at a high rate, and provides options to probe either internal or external signals and output the raw data via flash or TCP stream.
+* :example:`peripherals/parlio/parlio_tx/simple_rgb_led_matrix` demonstrates how to use the Parallel IO TX unit of {IDF_TARGET_NAME} to drive a RGB LED Matrix board with a HUB75 interface, using the LVGL library to display simple UI elements.
 
 
 API Reference
diff --git a/docs/zh_CN/api-reference/peripherals/parlio.rst b/docs/zh_CN/api-reference/peripherals/parlio.rst
index b09734b9e0da..4f8b19592b82 100644
--- a/docs/zh_CN/api-reference/peripherals/parlio.rst
+++ b/docs/zh_CN/api-reference/peripherals/parlio.rst
@@ -13,8 +13,8 @@
 应用示例
 --------
 
-* 带有 HUB75 接口的简单 REG LED 矩阵：:example:`peripherals/parlio/parlio_tx/simple_rgb_led_matrix`。
-* 逻辑分析仪：:example:`peripherals/parlio/parlio_rx/logic_analyzer`。
+* :example:`peripherals/parlio/parlio_rx/logic_analyzer` 演示了如何使用并行 IO RX 外设来实现逻辑分析仪。该分析仪可以以高频率并行采样多个 GPIO 上的数据，还可以探测内部或外部信号，并通过 flash 或 TCP 流输出原始数据。
+* :example:`peripherals/parlio/parlio_tx/simple_rgb_led_matrix` 演示了如何使用 {IDF_TARGET_NAME} 的并行 IO TX 单元驱动支持 HUB75 接口的 RGB LED 矩阵板，并使用 LVGL 库来展示简单的 UI 元素。
 
 
 API 参考