PBO纤维与碳纤维混杂复合材料高压储氮气瓶及制备方法,它涉及储氮气瓶及制备方法。它解决了现有采用单一纤维复合材料制作的高压储氮气瓶的特性系数低、安全性差的问题。本发明 PBO fiber and carbon fiber hybrid composite high pressure nitrogen storage cylinder and its preparation method, which relates to nitrogen storage cylinder and preparation method. The utility model solves the problems of low characteristic coefficient and poor safety of the existing high-pressure nitrogen storage bottle made by using single fiber composite material. this invention