Shell products such as cast iron for offshore wind power are the key components of offshore wind turbines.This arti-cle focuses on the study of salt control methods for spraying of offshore wind turbine equipment.By analyzing the key influen-cing factors of salt,the key points of salt control after cleaning and sand blasting are obtained,and a series of control and im-provement measures are formulated to effectively reduce the salt content on the surface of castings.Through the practice verifi-cation,a systematic operation method has been formed,which provides a certain reference basis for the related industries.