The clean-up program of food standards started in 2012. About 5 000 food standards were collected, including 398 food codes of practice. A comprehensive overview of these standards were conducted. Some questions were discovered, for example the contents of codes of practice were not clearly defined, some important codes of practice need to be developed. This paper discussed the problems of the existing standards, analyzed the principles of establishing food codes of practice, and provided advices for the integration of food standards.