Abstract: A circuit model for Yang accelerator's water transmission line and magnetically insulated transmission line (MITL) based on their impedance characteristics was employed to simulate the experiments, among which the one for a shorted load was perfectly modeled and the other for a wire array load however could not be accurately modeled until a series of load was introduced. With the aid of the model, the typical implosion characteristics of the wire array loads were discussed. The comparison of the calculated results by the model with the experimental ones indicates that the model is validated and is available for design and analysis of both the water transmission line and MITL.