By the end of 2019, CAAC has a fixed-wing transport fleet of about 3,800 aircraft and about 7,600 engines. Based on the average engine consume of 0.23 quart / h, the annual oil consumption is no less than 52 million quarts, with an estimated value of about 790 million RMB. At present, domestic civil aviation engine lubricating oil is heavily dependent on imports, which is obviously not conducive to the healthy growth of the aviation industry. Therefore, accelerating the work of obtaining airworthiness certification of domestically-made lubricants and putting them into market can not only solve the long-term dependence of our civil aircraft on imported lubricants, but also have broad market prospects and economic strategic value. With the acceleration of the localization process of civil aviation equipment and components, the performance of domestically-made lubricants have reached the leading level in the same industry. Since the domestic civil aviation aircraft engines are all manufactured abroad and are limited by the current internationally accepted civil aviation oil certification system, domestic self-developed lubricants are facing many difficulties in obtaining airworthiness certification. This paper studies the qualification tests required for civil aviation engine lubricating oil before it is put into service, so as to support and promote the lubricating oil certification as soon as possible.