diff --git a/tools/PUTTY.EXE b/tools/PUTTY.EXE
deleted file mode 100644
index 38b49b68b0..0000000000
Binary files a/tools/PUTTY.EXE and /dev/null differ
diff --git a/tools/SDCARD.zip b/tools/SDCARD.zip
deleted file mode 100644
index 2b54454d3e..0000000000
Binary files a/tools/SDCARD.zip and /dev/null differ
diff --git a/tools/SDL.dll b/tools/SDL.dll
deleted file mode 100644
index 49f8aa008f..0000000000
Binary files a/tools/SDL.dll and /dev/null differ
diff --git a/tools/libz-1.dll b/tools/libz-1.dll
deleted file mode 100644
index 9e2ef12769..0000000000
Binary files a/tools/libz-1.dll and /dev/null differ
diff --git a/tools/mount-sdcart-on-ubuntu.sh b/tools/mount-sdcart-on-ubuntu.sh
deleted file mode 100644
index 3fa56f255d..0000000000
--- a/tools/mount-sdcart-on-ubuntu.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/bash
-
-if [ -d /mnt/card ] 
-then
-echo "/mnt/card has been created"
-else
-sudo mkdir /mnt/card
-fi
-sudo mount -o loop,offset=32256 SDCARD /mnt/card
-
diff --git a/tools/qemu-system-arm-on-ubuntu b/tools/qemu-system-arm-on-ubuntu
deleted file mode 100755
index 2473c085fe..0000000000
Binary files a/tools/qemu-system-arm-on-ubuntu and /dev/null differ
diff --git a/tools/qemu-system-arm.exe b/tools/qemu-system-arm.exe
deleted file mode 100644
index bf21a5278e..0000000000
Binary files a/tools/qemu-system-arm.exe and /dev/null differ
diff --git a/tools/readme b/tools/readme
deleted file mode 100644
index b73d19a64d..0000000000
--- a/tools/readme
+++ /dev/null
@@ -1,8 +0,0 @@
-About uffs_demo_win32.exe?
-Compile OS: Windows XP SP3
-Compile Tools:Visul C++ 6.0
-
-This is an uffs filesystem demo applet.
-you can make it ,in accordance with you resource.
- Use document :
- \uffs\src\emu\*.*
\ No newline at end of file
diff --git a/tools/rtmlinker.exe b/tools/rtmlinker.exe
deleted file mode 100644
index a87ab4c95d..0000000000
Binary files a/tools/rtmlinker.exe and /dev/null differ
diff --git a/tools/run-mini2440-net-sdcard.bat b/tools/run-mini2440-net-sdcard.bat
deleted file mode 100644
index 892967c36f..0000000000
--- a/tools/run-mini2440-net-sdcard.bat
+++ /dev/null
@@ -1,2 +0,0 @@
-start qemu-system-arm.exe -M mini2440 -kernel ..\bsp\mini2440\rtthread-mini2440.axf -show-cursor -serial telnet:127.0.0.1:1200,server -net nic -net tap,ifname=virtual -sd SDCARD -serial file:virtualkbd
-start putty.exe telnet://127.0.0.1:1200/
diff --git a/tools/run-mini2440-sdcard-debug.bat b/tools/run-mini2440-sdcard-debug.bat
deleted file mode 100644
index c385148ee2..0000000000
--- a/tools/run-mini2440-sdcard-debug.bat
+++ /dev/null
@@ -1,2 +0,0 @@
-qemu-system-arm.exe -s -S -M mini2440 -kernel ..\bsp\mini2440\rtthread-mini2440.axf -show-cursor -sd SDCARD
-
diff --git a/tools/run-mini2440-sdcard-on-ubuntu.sh b/tools/run-mini2440-sdcard-on-ubuntu.sh
deleted file mode 100755
index ee2532ba49..0000000000
--- a/tools/run-mini2440-sdcard-on-ubuntu.sh
+++ /dev/null
@@ -1,3 +0,0 @@
-#!/bin/bash
-./qemu-system-arm-on-ubuntu -M mini2440 -kernel ../bsp/mini2440/rtthread-mini2440.axf -show-cursor -sd SDCARD -serial vc:80Cx24C -serial file:virtualkbd
-
diff --git a/tools/run-mini2440-sdcard.bat b/tools/run-mini2440-sdcard.bat
deleted file mode 100644
index 834cc1ba2d..0000000000
--- a/tools/run-mini2440-sdcard.bat
+++ /dev/null
@@ -1,3 +0,0 @@
-start qemu-system-arm.exe -M mini2440 -kernel ..\bsp\mini2440\rtthread-mini2440.axf -show-cursor -sd SDCARD -serial telnet:127.0.0.1:1200,server -serial file:virtualkbd
-start putty.exe telnet://127.0.0.1:1200/
-
diff --git a/tools/uffs.bin.zip b/tools/uffs.bin.zip
deleted file mode 100644
index b9e9ef1499..0000000000
Binary files a/tools/uffs.bin.zip and /dev/null differ
diff --git a/tools/uffs_demo_win32.exe b/tools/uffs_demo_win32.exe
deleted file mode 100644
index 92cf8a157c..0000000000
Binary files a/tools/uffs_demo_win32.exe and /dev/null differ
diff --git a/tools/在Qemu-mini2440模拟器中调试RT-Thread说明手册.pdf b/tools/在Qemu-mini2440模拟器中调试RT-Thread说明手册.pdf
deleted file mode 100644
index 4dd17c815d..0000000000
Binary files a/tools/在Qemu-mini2440模拟器中调试RT-Thread说明手册.pdf and /dev/null differ
diff --git a/tools/在Qemu-mini2440模拟器中运行RT-Thread说明手册.pdf b/tools/在Qemu-mini2440模拟器中运行RT-Thread说明手册.pdf
deleted file mode 100644
index a760cbf00a..0000000000
Binary files a/tools/在Qemu-mini2440模拟器中运行RT-Thread说明手册.pdf and /dev/null differ