This paper summarizes the leak detection techniques of LRE,which are classified into groups and considered in details.Finally,several prospects of the leak? detection techniques are presented.

• 本文对液体火箭发动机的泄漏故障检测方法进行了综述，对已用于或可能用于液体火箭发动机检漏的技术进行分类和详细评述，指出了液体火箭发动机检漏技术的几个发展方向。