The steel structure coating of marine equipment runs through the entire construction process of marine equipment,and the cost of steel structure coating accounts for a relatively large proportion of the construction cost of marine equipment.Therefore,based on the current situation of coating construction in the construction process of marine equipment,cost control of coating in marine equipment construction was explored.The four aspects of personnel efficiency,coating control,construction management,and equipment operation in the cost composition of marine equipment coating were studied and analyzed,which provided reference for cost control in the subsequent construction process of marine equipment.