The invention provides an anti-
corrosion magnetic force pump. A pump shaft core rod and an
impeller inner core are formed in an integrated way, a plastic
impeller is injected on the
impeller inner core, a plastic layer is coated on the surface of a pump shaft, the
coating layer of the pump shaft and the plastic impeller are formed in the integrated way, a groove is formed in one side, abutting against the pump shaft, of an outer
coating layer of an inner magnetic rotor, and is internally provided with a sealing ring, and a plastic sealing nut abut against each other, and a groove is also formed in one side, abutting against a plastic sealing nut, of a
coating layer of the inner magnetic rotor, and is internally provided with a sealing ring. Due to the fact that the coating layer of the pump shaft and the impeller are integrated, the occurrence of a gap between the connecting components can be avoided, the sealing rings are used for conducting tighter sealing on the connecting parts of the coating layer of the pump shaft and the coating layer of the inner magnetic rotor, the working time and the exchanging cycle of the magnetic force pump can be greatly prolonged through the structure, and the production cost is greatly lowered.