Abstract: With the advancement of "South China Sea Deep Development" national strategies, the level of independent research and development in the fields of marine high-tech equipment such as offshore drilling platforms, wind/nuclear power and ships has been significantly improved. Currently, the coupled damage of wear and corrosion on the key transmission systems/moving parts of high-tech equipment, running in the tropical marine atmosphere has become a common technical problem. This paper investigated and compared the annual temperature, relative humidity, salt spray concentration, salt deposition amount on the solid surface, atmospheric Cl^- concentration and solar radiation intensity of the four major sea areas of Bohai Sea, Yellow Sea, East China Sea and South China Sea (as thermal field and chemical field factors) and motion/transmission parts serving conditions (as force field factor). Since the temperature and humidity of the salt fog atmosphere in the three cold sea areas of the Bohai Sea, the Yellow Sea and the East China Sea are relatively low, and the duration and intensity of UV radiation throughout the year are significantly weaker than those in the South China Sea (hot sea), this paper focused on the key technical bottleneck of "friction-wear-corrosion" faced by transmission systems and moving parts of South China Sea engineering equipment, which were used in high temperature, high humidity, high salt and strong ultraviolet environment. The tribology behaviors and the damage failure characteristics of self-lubricating coating materials, such as DLC films, ceramic coatings, light alloy micro-arc oxidation coatings, MoS₂-based adhesive coatings (soft), functional integrated polymer alloy (soft) in the vacuum/inert gas, humidity, aqueous media, salt water, salt spray and actual ocean environment were discussed. Furthermore, the research progress and design limitations of the "friction-corrosion" evaluation methods in liquid medium, neutral salt spray and real sea salt spray atmosphere were summarized. Based on the previous researching data in laboratory and verification testing results on the actual tropical marine equipment, a new research strategy for self-lubricating and wear-resistant and anti-corrosion technologies applied to tropical marine salt spray atmosphere was proposed, that was, fabricating series "hard-soft" self-lubricating and wear-resistant and anti-corrosion composite coating materials via focusing on the scientific problems of interface synergy and functional combination, and establishing a database of dynamic corrosion protection and maintenance guarantee coatings and materials for the whole sea area marine equipment through building a new online monitoring method of multi-field coupling friction and wear in tropical marine atmosphere. It was hoped that this paper can provide ideas for improving the technical level of self-lubricating and anti-corrosion properties for tropical marine high-tech equipment and their key transmission systems/moving parts.