This product is a device for reducing the volume of food waste at the source. The collected kitchen waste is crushed by the crushing device to make the particle size of the material more uniform; the solid-liquid separation device is used for the crushed waste to realize the solid-liquid separation of the material, and the solids in the sorting section are directly collected to Storage box; the liquid enters the oil-water separation system for oil-water separation, and the separated wastewater can be directly discharged to the urban sludge pipeline for high-quality collection and reuse.