How much do I pay for the tax, if I bring wine from Taiwan to China?

Generally, two bottles no more than 1.5L is free of tax charge. If you take more, pay duty and other taxes. Different wines varies in duties. Generally, the duty is 14-65% (red wine 14%), added value tax 17% and 10% consumption tax. The duty is for most-favored-nation treatment I think Taiwan is in the most-favored.