A high speed pneumatic rotary cup corrosion-resistant static nozzle comprises a rotary cup body, a rotary cup liquid jet, a liquid delivery device, a liquid outlet, a traverse baffle, a support plate and a liquid inlet. The rotary cup body, the traverse baffle, the support plate and the rotary cup liquid jet are manufactured into an integral piece of the cup body, the traverse baffle, the support plate and the jet by a barstock. The nozzle has the advantages of simple part processing, reduced mismatch error between the components, guaranteed machining precision, improved utilization factor of masking liquid, corrosion resistance and the like.