The invention relates to a slotted solar intermediate/low-temperature ORC (organic rankine cycle) thermal power generator, consisting of a parabolic trough light-condensing array, a linear focusing strengthening heat collecting tube, a heat-conduction working medium, a heat exchanger, an atomizer, an atomization flash evaporation tank, a pressure pump, a pressure control valve, a heat storage device, a heat-storage working medium, an intermediate/low-temperature ORC power unit, an organic evaporating agent tank, an evaporator, a condenser, an air cooling machine set, a regulating valve, a transmission pipeline, a complementary boiler, a light-condensing array cluster PLC (programmable logic controller), and a hydraulic or turbine worm driver. According to the slotted solar intermediate/low-temperature ORC thermal power generator disclosed by the invention, the heat storage device supplies heat to an intermediate/low-temperature ORC power machine by taking atomized water vapor, glycol, heat-conducting oil or fused salt as a heat-transfer working medium so that the intermediate/low-temperature ORC power machine is directly driven to realize solar heat collection power generation. The slotted solar intermediate/low-temperature ORC thermal power generator disclosed by the invention belongs to the field of solar energy heat utilization.