diff --git a/bsp/stm32/stm32f103-blue-pill/README.md b/bsp/stm32/stm32f103-blue-pill/README.md
index 8be755015743cb41ac6abcc4e6d655341f2b2417..fe7d6ef34a55a7b7d01addb5248d92652d64a30f 100644
--- a/bsp/stm32/stm32f103-blue-pill/README.md
+++ b/bsp/stm32/stm32f103-blue-pill/README.md
@@ -222,6 +222,22 @@ Each peripheral supporting condition for this BSP is as follows:
 
 
 
+### 3.8 MDK-Keil5 Simulator
+
+ If you haven't had a real Blue Pill Board yet, you may use MDK-Keil5 simulator to simulate to run RT-Thread on Blue Pill Board.
+
+![simulator1](figures/simulator1.png)
+
+
+
+![simulator2](figures/simulator2.jpg)
+
+
+
+![simulator3](figures/simulator3.png)
+
+
+
 ## 4 **Advanced Features**
 
 This BSP only enables GPIO and USART1 by default. If you need more advanced features such as SPI, ADC, or to add software packages, you need to configure the BSP with RT-Thread [ENV tool](https://www.rt-thread.io/download.html?download=Env), as follows:
diff --git a/bsp/stm32/stm32f103-blue-pill/README.pdf b/bsp/stm32/stm32f103-blue-pill/README.pdf
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