The invention discloses a solid waste handling combined power generation method based on organic Rankine cycle and a solid waste handling combined power generation system based on the organic Rankine cycle. The system comprises a solid waste drying device, a cracking device, a fluidized-bed furnace, a heat energy circulating device, a solar thermal collector and organic Rankine power generation equipment, wherein the solid waste drying device is used for drying solid waste to remove moisture in the solid waste; the cracking device is used for cracking and gasifying the dried solid waste, so as to obtain a cracked product; the fluidized-bed furnace is connected with the cracking device and is used for burning the cracked product; the heat energy circulating device is used for collecting heat energy generated when the fluidized-bed furnace burns the cracked product and transfers the heat energy in a combined power generation system sequentially through the fluidized-bed furnace, the organic Rankine power generation equipment and the solid waste drying device; the solar thermal collector is used for converting the solar energy into heat energy; and the organic Rankine power generation equipment is used for acquiring the heat energy through the heat energy circulating device and converting the heat energy into electric energy. According to the method and the system, the problem of wasting of resources as the heat energy generated by treatment of the solid waste can not be fully utilized is solved.