From the aspects of mix ratio design,form work system analysis and field verification,the surface quality control technology of offshore fair-faced concrete was studied.The results showed that,using the mix ratio of cement+400 mesh limestone powder+active admixture and steel form work+water-based release agent form work system,the appearance quality control of offshore fair-faced concrete is the best.The oil-based release agent has strong resist-ance to rain erosion,and the water-based release agent is conducive to the discharge of bubbles from the exposed con-crete.The brushing method of electric spraying+cotton brush can make the exposed concrete achieve mirror effect.