NOVELTY - An automatic tracking solar photothermal catalysis membrane separation reaction system comprises a photothermal catalytic reaction zone, a membrane separation zone, a system control section, and a solar energy generating area provided with a solar controller. The membrane separation zone separates titanium dioxide (TiO2) catalyst mixed liquid and the catalyst is returned to the photothermal catalytic reaction zone by a circulating pipe to form a circulating reaction system. The system control section controls operation of working state of solar energy power generation area.    USE - Automatic tracking solar photothermal catalysis membrane separation reaction system.    ADVANTAGE - The system is energy-saving, and has high efficiency, high light energy utilization rate and high mass transfer efficiency. The solar automatic tracker can greatly improve photothermal catalyst removing rate of pollutant, so that the light can reach maximum utilization rate.    DETAILED DESCRIPTION - An automatic tracking solar photothermal catalysis membrane separation reaction system comprises a photothermal catalytic reaction zone, a membrane separation zone, a system control section, and a solar energy generating area. The photothermal catalytic reaction zone is connected with a gas-liquid separation membrane separation zone which is connected with a water tank. The membrane separation zone separates TiO2 catalyst mixed liquid and the catalyst is returned to the photothermal catalytic reaction zone by a circulating pipe to form a circulating reaction system. The system control section comprises a system control panel adjusting device and controls operation of working state of the solar energy power generation area by a solar cell directly to system control section to provide energy. The photothermal catalytic reaction zone comprises a uniform water distributor, an energy collecting plate (5), a photothermal catalytic reaction pipe, and a sunlight automatic tracker (6). The membrane separation zone comprises a gas-liquid separation water tank (7), a membrane component (10), a heating resistance rod, and a water outlet pipe. The solar power generation area is provided with a solar controller, a solar battery component (8), and a storage battery group connected with the solar energy battery component. The solar battery component is connected with an inverter for converting a direct current electric energy into alternating current electric energy. The solar controller provides over-charging protection and over-discharging protection.    DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of an automatic tracking solar photothermal catalysis membrane separation reaction system.    Energy collecting plate (5)    Sunlight automatic tracker (6)    Gas-liquid separation water tank (7)    Solar battery component (8)    Membrane component (10)