From the fuzzy mathematics elementary theory this paper discusses the cold milling machine hydr-aulic system condition examination and the fault diagnosis principle and the method.

• 从模糊数学的基本理论出发,论述了铣刨机液压系统状态监测与故障诊断的原则和方法,为计算机辅助故障诊断,缩短诊断时间,提高准确性,提供了一条可行的途径。