简述了侵地武器的发展历史和现状，侵彻战斗部技术在精确制导武器中已被广泛应用，小爆炸威力侵地核武器的开发已经主要不是工程技术方面的问题；介绍了气炮实验技术及其在侵地武器研究中的应用，气炮模拟实验结果表明，岩土侵彻存在良好的力学相似关系，混凝土侵彻同花岗岩侵彻存在许多质的差异；介绍了一种通过侵深实验数据分析计算侵彻弹体加速度、速度和位移变化过程的方法。

The history and the actualities of developing earth-penetrating weapon are described. The fighting assemblies with penetrator have been applied in accurate guided weapons widely. The technical difficulties for developing low-yield earth-penetrating nuclear weapons have not been primary obstacle. The experimental technique of gas gun and its applications in earth-penetrating weapon tests are introduced. The experimental results indicate that there is a favorable analogical relation among earth-penetrating events, but there are many essential differences between penetrating phenomena of concrete and of granite. A method for calculating profiles on acceleration, velocity and displacement of penetrating projectile upon penetrating depth data is introduced.