Food waste is a living creature formed by residents in the process of daily consumption, and its sources are mainly rice bowls, canteens, street snacks and other places. All kinds of organic substances contained in it are easy to corrode in summer, and there are a lot of leftovers, soup, spoiled water, etc. in restaurant garbage, which is easy to cause pollution in the process of garbage collection and transportation. At the same time, catering garbage is the main source of leachate from landfill, and it is also an important reason for air pollution and fly breeding. Pigs fed with food waste and refined hogwash fat have seriously endangered the health of citizens. A large amount of food and beverage waste has become the main source of urban pollution and harm to human health. Scientific and harmless treatment of food and beverage waste has become the fundamental way out for urban management and construction.