测试性对武器系统的维修性、可靠性、安全性、战备完好性和寿命周期费用都有直接或间接的影响，随着武器系统复杂程度的提高，这种影响变得越来越明显。文章阐述了测试性的基本概念和设计目标、测试性对武器系统的影响和测试性工程的发展现状。 Testability has a direct or indirect impact on the maintainability, reliability, safety, readiness of combat readiness and life-cycle costs of weapon systems and becomes more and more apparent as weapons systems become more complex. The article expounds the basic concepts of testing and design goals, the impact of testing on the weapon system and the development of testing engineering.