The existence of parasitical parameters, such as coupling inductances and coupling capacitance between wires, makes crosstalk inevitable. In order to investigate the effect of crosstalk, accurately and efficiently computing of parasitical parameters is needed. In this paper, Partial element equivalent circuit (PEEC) method is used to partition the model of wires and ground plane, to extract the partial parameters of resistances, capacitances and inductances forming the equivalent SPICE circuit and to analyze the effect of crosstalk. Different kinds of relative position of wires are considered.