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为提高HMX‑Al基混合炸药的能量和低易损性能，通过分析计算Al含量、奥克托今（HMX）含量对炸药爆轰性能的影响规律，确定了高固含量含铝PBX（polymer bonded explosive）炸药设计依据，在此基础上通过三级颗粒级配优化、固化体系筛选及降感剂、工艺助剂的选择应用，制备了固相含量90%（HMX/Al=75/15）的端羟基聚丁二烯（HTPB）/异佛尔酮二异氰酸酯（IPDI）黏结体系浇注固化炸药GOL‑42，炸药工艺及安全性能优良。按照GJB772A等方法对GOL‑42炸药进行了爆轰能量、低易损性、力学性能、热性能及加速贮存性能测试，结果表明：该炸药实测密度1.782 g·cm-3、爆速8251 m·s-1、爆压26.9 GPa，Φ25 mm圆筒试验格尼系数2.76 mm·μs-1，在快速烤燃、慢速烤燃、子弹撞击试验中响应程度均为低反应等级的燃烧反应，炸药综合性能优良，预估贮存寿命20年以上，是一种长寿命低易损浇注炸药。“,”To improve the energy property and low vulnerability of cast HMX‑Al based explosives， high solid ‑content aluminized PBX were designed by analyzing the influences of Al and HMX contents on detonation properties. A casted PBX GOL‑42 of 90% solid content with HTPB/IPDI binder was manufactured by introducing desensitizers and process agents and was optimized by three‑grade grain‑size distribution. The GOL‑42 explosive showed good processing and safety properties. The detonation property， low vulnerability， mechanical property， thermal property and accelerated storage property were measured by their corresponding standard test methods. The results showed that its measured density， detonation velocity， detonation pressure， Gurney coefficient of Φ25 mm cylinder test was 1.782 g·cm-3， 8251 m·s-1， 26.9 GPa， 2.76 mm·μs-1， respectively. And in the low vulnerability examinations， including bullet impact test， slow cook‑off test and fast cook‑off test， all the reaction grades were combustion. Its estimated storage life was over 20 years. GOL‑42 showed perfect overall properties and was predicted as a long‑life low vulnerability cast explosive.