Only a maximum of 20,000 yuan can be physically carried on per person out of the country.
However, one may transfer through your bank via TT. The amount allowable thru TT will depend on your taxable income.
Doing a TT is lengthy process in China. Some guys do it once every 2 months to save the hassles. I know of no other legal means.
I know of people carrying excessive amounts being stopped at the screening areas. So be forewarned.