讨论不确定离散广义系统的因果性鲁棒控制问题。对不改变原系统正则性的任意扰动 ,给出并证明了使闭环系统保持因果性的充要条件。最后举例证明了所给出的主要结果 The problem of causal robust control of uncertain singular discrete systems is discussed. For any perturbation that does not change the regularity of the original system, the sufficient and necessary conditions for keeping the closed-loop system causal are given and proved. The last examples demonstrate the main results given