Google market is not supported in China and it is hard to publish android applications to it from China mainland, even if your application is a free version.
I did some search and find some alternative sites which accept android applications.:
SlideME (https://slideme.org/ ), I uploaded my first android application Days and date to it yesterday.
MOBANGO (http://www.mobango.com/), it more like a social community than an application download site.