China Google Maps Downloader is a tool that help you to get small tile map images from Google Maps of China (http://ditu.google.cn). All downloaded small images are saved on the disk. You can view downloaded maps by Map Viewer Or you can combine them into a big BMP map.
Note: The downloaded images are only for your personal purpose, non-commercial use.

It is very easy to use. Click here to see how to use it.

It is a shareware, for trial version, you can not download high precision images (For trial version, the max zoom level is 13; for registered version, the max zoom level is 19). It is cost you only 29.95$!