Dietary norms are the rules and basis of dietary life，production and operation，including policies on diet，laws on diet，regulations on diet，standards for diet and other norms. The promulgation of the National Food Safety Standard-General Hygienic Practices for Catering Services is of great significance for improving the safety level of the catering industry in China，regulating the operation of catering services，improving the industry development quality and adapting to growing consumer demand for catering. This report combines the development practice of catering services and makes interpretation in a normative sense，aiming to provide support for the normative development of the industry.