Considering the important responsibility of the collector transmission line in the outgoing power transmission of wind farms, a study on the transient characteristics of the wind farm delivery system taking into account multiple lightning strikes is carried out. Based on PSCAD modeling, the transient response of single wind turbine with multiple lightning strikes, the transient response of wind farm transmission line with multiple lightning strikes, and the transient response of wind farm transmission line with multiple lightning strikes at different locations are analyzed, and the analysis of transient characteristics and their interaction on the first and subsequent lightning strikes with different wave head times, different grounding resistances of wind turbine/tower, and multiple locations with simultaneous lightning strikes is proposed. The simulation results verify the correctness of the derived lightning transient equivalent circuit model and the effectiveness of the multiple lightning transient response of the wind farm transmission system, and the research results can support the lightning protection technology improvement of the wind farm transmission system.