The invention relates to a municipal waste separation system. The municipal waste separation system is characterized by comprising a feeding machine, a secondary rotary screen, a first buffer bin, a second buffer bin, a first spiral conveyer, a second spiral conveyer, a gravity separator, a first sorting belt, a second sorting belt, a first magnetic separation device, a second magnetic separationdevice, a third magnetic separation device, a first vortex separation device, a second vortex separation device, an inert material storage hall, a resource description framework (RDF) storage hall, alarge-inclination-angle belt machine, a vibrating screen and a crushing machine. The separation system has high sorting efficiency, and can effectively separate combustible substances, insert components, ferrous metal / non-ferrous metal, and harmful substances in the pre-crushed and dried municipal waste to facilitate subsequent comprehensive utilization. The separation process is totally closed,remote operation and control is performed by using a computer, waste is not required to be directly contacted, the working environment of workers is improved, mechanization and automation are realized, and efficiency is improved.