Abstract: How to effectively carry out sex trading activities on the law of governance is a problem all over the world. China is also facing the same problem. As the social background of the legislative changes, China’s early formulation of the sex trade and related provisions of the law acts can not meet the current new circumstances. Comparing the foreign legislation and implementation effect in combination with the actual situation of our country and based on an objective analysis about the sex trade legal nature, this paper put forward a new viewpoint for our existing legal way and content on sex trade, stressed that the purchase of the sex trade should be taken to punishment, and gave concrete measures to achieve the purpose of effectively controlling of trading activities by better use of legal means.