文章从电路耦合滤波的角度考虑 ,分析了一类间歇分谐波与间歇混沌现象产生的原理 ,确定耦合电路传导和辐射干扰是产生该现象的根源 ,并构造了一个开关变换器模型作为研究对象 ,仿真与实验均得到了相似的非线性现象 ,同时对不同的电路参数集 ,讨论并分析了其对间歇现象产生所起的不同影响 ,为变换器的稳定设计提供信息 .该研究方法也可推广到其他非线性电路系统的类似研究中 . From the perspective of circuit coupling filtering, this paper analyzes the principle of a class of intermittent subharmonic and intermittent chaos phenomenon, and determines the conduction of the coupling circuit and the radiation interference are the root causes of this phenomenon. A switching converter model is constructed as the research object , Simulation and experiment have been similar to the non-linear phenomenon, at the same time for different circuit parameter sets, discussed and analyzed its intermittent phenomena have different effects, for the converter to provide a stable design information. Similar to other non-linear circuit systems.