本文收集了十余年来部分国内外学者公开发表的关于两类冗余混联系统可靠度比较方面的文献资料。对子m×n阶冗余混联系统中串—并型可靠度要大于并—串型可靠度这一结论,上述文献分别作了有限的归纳证明。本文在前人工作的基础上,放宽了“所有单元可靠度均为同一常数”的限制条件,对上述结论给出了一般性的数学证明。 This article collects the literature about the reliability comparison of two types of redundant hybrid systems publicly published by some domestic and foreign scholars in more than ten years. For the conclusion that the reliability of series-parallel type in m × n-order redundant hybrid systems is greater than that of parallel-series reliability, the above literatures have made limited inductions respectively. Based on the previous work, this paper relaxes the restriction that “the reliability of all units are the same constant”, and gives a general mathematical proof of the above conclusion.