Abstract: In order to meet the high anti-corrosion requirements of industrial locking systems for outdoor energy storage cabinets,the structure,materials and surface treatment processes of the main lock and transmission load components were optimized. Based on the design principle of isolating the friction contact surface and optimizing the metal surface treatment process,the movement friction structure of the lock body's actuating components adopted a plastic coating process,and carbon fiber reinforced polyphenylene sulfide(Cf-PPS) was used to replace zinc alloy to form a plastic-metal pair,thus replacing the traditional metal-metal pair. This improvement significantly enhanced the wear resistance and corrosion resistance of the components. In terms of appearance,the lock body was treated with a combination of electrophoretic coating and fluorocarbon plastic powder spraying,while the transmission components were made of 316L stainless steel and underwent passivation treatment. Through process analysis,as well as mechanical performance tests and neutral salt spray tests,the results showed that the effective opening and closing times of the locking mechanism reached 20 000 times,and all components endured over 2 300 h in an alternating salt spray environment. These measures significantly improved the reliability and stability of the industrial locking system and enhanced the survival ability of the industrial lock in outdoor high-temperature,high-humidity and highly corrosive environments.