diff --git a/bsp/qemu-vexpress-a9/qemu-dbg.bat b/bsp/qemu-vexpress-a9/qemu-dbg.bat
index 64268002e9..402bb460fe 100644
--- a/bsp/qemu-vexpress-a9/qemu-dbg.bat
+++ b/bsp/qemu-vexpress-a9/qemu-dbg.bat
@@ -1 +1,6 @@
-qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial vc -serial vc -S -s
+@echo off
+if exist sd.bin goto run
+qemu-img create -f raw sd.bin 64M
+
+:run
+qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial vc -serial vc -sd sd.bin -S -s
diff --git a/bsp/qemu-vexpress-a9/qemu.bat b/bsp/qemu-vexpress-a9/qemu.bat
index 33cae43db5..603fe4a0ff 100644
--- a/bsp/qemu-vexpress-a9/qemu.bat
+++ b/bsp/qemu-vexpress-a9/qemu.bat
@@ -1 +1,6 @@
-qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial vc -serial vc
+@echo off
+if exist sd.bin goto run
+qemu-img create -f raw sd.bin 64M
+
+:run
+qemu-system-arm -M vexpress-a9 -kernel rtthread.elf -serial vc -serial vc -sd sd.bin