The invention discloses a wind turbine generator set system identification method based on the ADALINE (ADAptive LINear Element) technology. to The method provided by the invention comprises the following steps: determining the input-output of the system, aiming at the operation mechanism of the wind turbine generator set; based on an LPV (Linear Parameter Varying) method, dividing stable operating points according to effective wind speed; selecting an appropriate excitation signal, and using a blade pitch angle or generator torque as a testing input signal as well as using an output signal as generator speed to perform stimulation on the stable operating points and a transition stage between the stable operating points to obtain universe input-output data; extracting all stable operating point input-output data in the testing data, and using an identification method based on the ADALINE technology to obtain a simple model under the all stable operating points; establishing an LPV model of a global system through a model interpolation method. The method is simple in algorithm, easy to implement, has high operation speed and lower calculated amount and can ensure the model performance and stability.