目的 开展某型备份伞可靠性和适用性改进研究，以解决部队使用过程中出现的相关问题，减少部队跳伞训练伤亡，保障跳伞员的生命安全，增强跳伞员的自信心。方法 通过研究分析某型备份伞在使用过程中出现问题的原因，提出对备份伞伞包全新的改进方案，即对伞包的结构形式进行调整；改进伞包保护布，改变伞包封包方式；对备份伞伞包的部分部件进行微改。结果 备份伞各项指标均得到改善。结论 改进设计研究给某型备份伞增加了自动开伞方式，这意味着跳伞员又多了一道保险，从而确保了跳伞员的生命安全。

This paper does the improvement research on the reliability and feasibility of a certain reserve parachute to solve the problems occurring in its application in troops, reduce casualties in parachute training, safeguard the life safety of parachutists and improve their confidence. A brand new improvement scheme of the reserve parachute pack was put forward by doing researches and analysis on the reasons of problems occurring in its application process. The solutions included: adjusting the structure form of the parachute pack, improving the protective cloth of the pack, changing the package ways and making some micro modifications to some parts of the parachute pack. The results proved that every index of the reserve parachute was improved. In conclusion, the improved design increases the means of automatic parachute opening, which means the parachutists get another insurance to ensure their life security.