In consideration of the viewpoint of superposition theorem being only for linear circuits , starting from mathematical foundation of superposition theorem , substitutional theorem is used to conduct an equivalent conversion on the nonlinear circuits , and application of superposition theorem in the nonlinear - resisting circuits is innovatively proposed and basic procedures for its solution are provided 摘要针对叠加定理只能用于线性电路的观点，从叠加定理的数学基础出发，通过应用替代定理等效变换非线性电路，创造性地提出了叠加定理在非线性电阻电路中应用的方法，给出了求解的基本步骤。
