The invention discloses a wind turbine model based on PSASP (power system analysis software package) and a power disturbance simulation validation method thereof. The method includes establishing a custom model in the PSASP according to a transfer function block diagram, performing detailed simulation analysis on each control procedure, and acquiring parameter identification results of each custom model; establishing a single infinite model in a PSASP program to simulate actual situation of a wind turbine accessing to a power grid. By the aid of the wind turbine model based on the PSASP and the power disturbance simulation validation method thereof, defects that identification is difficult in the prior art and result accuracy is poor can be overcome, and the wind turbine model based on the PSASP and the power disturbance simulation validation method have the advantages that identification is easy and the result accuracy is poor.