Economic market status of China has been challenged by European Union and United States continuously when the deadline of 15 years after China’s accession of WTO will expire. The theories such as “Continuous Effectiveness”,“Inversion of Burden of Proof”and “Discrepancy of Facts”were proposed by scholars abroad, and are accepted by some domestic scholars. This article tries to defeat these theories, and try to confirm following points of view: There have been non-market economy standards in WTO framework; Market economy status standards raised by EU and US, which are not authorized by WTO, are not the rules of international law; Non-market economy status of China never has been confirmed by the Protocol on the Accession of the People’s Republic of China to the WTO; China’s market economy status, generally shared by every WTO member, need not be recognized by any WTO member after 2016.