Because the offshore platform steel structure is corroded in the marine corrosive environment all the year round,the serious corrosion affect the safe and normal operation of the offshore platform,the offshore plaform anti-corrosion work becomes the key construction.The coating construction process of offshore plaform was summarized,the surface treatment and painting construction requirements before painting construction were analyzed,the causes of quality problems were explored,and improvement suggestions were given,which provided reference for the coating construction and quality improvement of new offshore platform.