利用比较定理、矩阵范数和矩阵测度的有关性质 ,提出了简单不确定时滞系统及对称组合不确定时滞系统的稳定条件 .指出若带有时滞的系统稳定 ,则去掉时滞时系统一定稳定 .在组合系统的情况下给出了时滞相关型的稳定条件 .所研究对象的不确定矩阵的范数有一定限制 By using the properties of comparison theorem, matrix norm and matrix measure, the stability conditions for simple uncertain time-delay systems and symmetric combined uncertain time-delay systems are proposed. It is pointed out that if the system with time delay is stable, And the stability conditions of the delay-dependent type are given in the case of the combined system. The norm of the uncertain matrix of the studied object has a certain limit