Business license and catering service license are required. 1. Employees' health certificate. 2. Hygiene license. 3. Business license (positive and negative) of individual industrial and commercial households. 4. Organization code certificate (positive and negative) of individual industrial and commercial households (public, financial and private). 5. Local tax registration certificate (positive and negative). This catering service needs 1. It is suitable for the variety and quantity of food produced and supplied. And keep a specified distance from toxic and harmful places and other pollution sources. 2. Have business equipment or facilities suitable for the variety and quantity of food to be produced and supplied, and have corresponding equipment or facilities for disinfection, changing clothes, washing hands, lighting, ventilation, refrigeration, dust prevention, fly prevention, rat prevention, insect prevention, washing, waste water treatment and garbage storage. 3. Have food safety management personnel who have been trained in food safety and meet the relevant conditions. And the rules and regulations that are suitable for the actual situation of the unit to ensure food safety. 4. Have a reasonable layout and processing flow, prevent the food to be processed from cross-contamination with directly imported food, raw materials and finished products, and avoid the food from contacting toxic and unclean substances. 5. Other conditions stipulated by the State Food and Drug Administration or the food and drug supervision and administration departments of provinces, autonomous regions and municipalities directly under the Central Government.