Objective To study influences of ocean environment on corrosion of typical nonmetal materials. Methods A environment spectrum for accelerated corrosion test was drawled up to carry out corrosion test, atmospheric exposure test and data analysis. Results Mechanical properties such as breaking strength, yield strength and elongation at break of nitrile rubber buna, silicon rubber, organic glass and sealant decreased to a certain extent after tests of thermal shock, salt fog, ultraviolet exposure, ultraviolet-immersion and exposure in Wanning Station, but their mechanical properties were still kept at 85%. This means that nitrile rubber buna, silicon rubber, organic glass and sealant were corrosion resistant. Conclusion The corrosion resistance of nitrile rubber buna and sealant is better than that of silicon rubber and organic glass.