The main components of restaurant wastewater are surplus food and water, and organic substances such as starch, food fiber and animal fat are the main components, which have the characteristics of high nutrient content, high moisture content, high oil and salt content, and perishable fermentation and smelly. If it is collected, transported and disposed together with domestic garbage, it will seriously affect the city appearance and environment and residents' lives, and will also affect the final disposal effect of domestic garbage.