For decreasing weapon system load and improving weapon system performance index, discuss the combustible cartridge case development status and its prospects. Introduce the current situation and advantages of combustible cartridge case, analyze the technology difficulties and solutions of combustible cartridge case in application from aspects such as air closure, strength, chemical stability, and storage. By introduction from above 4 aspects, put forward the application field of combustible cartridge case. The analysis can be used for improve weapon system performance index, it has high reference value.