Abstract: On the basis of the comparative study of the anti-wear property specification for the United States and Russian military turbine oil products by four ball method, the internal laws and discrimination of the anti-wear property of marine steam turbine oil were studied through SH/T 0189-1992 Lubricating oils determination of anti-wear by four ball method and GB/T 3142-1982 Lubricants-determination of load-carrying capacity by four ball method. The correlation of four ball method and FZG was analyzed based on the FZG results. The results showed that the larger the load, the lower the rotational speed, and the more stringent the friction environment is, the more obvious distinguish for the anti-wear properties of different oils; SH/T 0189-1992（147 N 1 200 r/min）can reasonably evaluate the anti-wear property of marine steam turbine oil. The maximum nonseizure load PB value has obvious distinction between marine steam turbine oils and can represent the anti-wear properties of oil products.

Key words: turbine oil, four ball method, anti-wear property, discrimination