柔性制造系统的能控性与能观性是指通过控制工件的开工时间 ,达到有效控制系统的运行过程的目的。该文针对一类特殊的柔性制造系统———Flow Shop系统 ,讨论了其能控、能观性的问题。通过分析Flow Shop系统具有的特殊性 ,给出了判定该系统能控性的一个充要条件和能观性的一个充分条件 ,并对能控系统的运行特性进行了讨论 ,给出了能控系统稳定运行的一个充分条件。该文的结果为Flow Shop系统运行的有效控制提供了理论依据 The controllability and observability of the flexible manufacturing system mean the purpose of effectively controlling the operation of the system by controlling the start time of the workpiece. Aiming at a kind of special flexible manufacturing system --- Flow Shop system, this article discusses its controllable and observability problems. By analyzing the particularity of the Flow Shop system, a sufficient and necessary condition for determining the controllability of the system is given. The operational characteristics of the controllable system are discussed. A Sufficient Condition for Stable System Operation. The result of this paper provides a theoretical basis for the effective control of Flow Shop system operation