If you are F1 student and have been residing in the US less than five years, you must file 1040NR or 1040NR-EZ. Also, there is a tax treaty bwtn China and US, which states first $5,000 is tax deductible. There are some restrictions and rules as well, but you can find them in IRS's publications.

I know some schools provide free tax services for international students, so check around.