The SG-Garbage Melting Gasification Coupled with Coal-fired Power Generation System uses fixed-bed waste gasification and a chlorine removal process before combustion. The fixed-bed gasification process simplifies the waste pretreatment. This technology does not directly incinerate waste, avoiding the formation of dioxins and preventing heavy metal diffusion. The ash and slag generated after gasification can be used as building materials, with no foul odor emissions or pollutant discharge throughout the process. This technology achieves resource utilization, harmless treatment, volume reduction, and stabilization of waste, offering very high economic and social benefits.