In recent years, nanocoating technology has achieved breakthroughs in the aerospace industry, with polysilazane (PSZ) standing out prominently. As a novel inorganic polymer, polysilazane is an ideal material for manufacturing high-performance coatings due to its excellent heat resistance, corrosion resistance, and oxidation resistance. Its unique Si-N bond structure enables the coating to remain stable under high-temperature conditions, significantly enhancing the safety and durability of aircraft and other aerospace vehicles. Additionally, the lightweight nature of polysilazane coatings helps reduce the overall weight of aerospace vehicles, lowering fuel consumption and CO2 emissions, thus injecting new impetus into the green development of the aerospace industry.