In the harsh tropical marine environment of high temperature,high humidity,high salt fog and strong solar corrosion,China's aircraft is facing severe corrosion damage problems,and the rational use of corrosion inhibitors is an effective means of aircraft corrosion protection.In this paper,four typical corrosion inhibitors at home and abroad were selected to evaluate the corrosion inhibition effects of 7A04 aluminum alloy coating standard parts in the tropical marine atmosphere environment,and the corrosion inhibition effects of different corrosion inhibitors on 7A04 aluminum alloy coating standard parts were explored.