Abstract: Low-pressure environment generally exists in high-altitude areas and cruise aircraft, while our country has large areas of high-altitude areas and the world's largest number of high plateaus airports. The low-pressure environment will change the combustion characteristics of solid materials. The process of ignition, combustion and flame propagation of solid combustibles are introduced. The research progress on combustion characteristics of four common solid materials such as fabrics, cartons, wood and cables under low pressure environment are systematically reviewed, and their combustion characteristics are analyzed and summarized. The key research tendency of the combustion characteristics of solid materials under low pressure environment in the future is presented, so as to provide a reference for fire safety under low pressure environment.

Key words: low-pressure environment, high plateau airport, solid material, combustion characteristics