The invention discloses a compensation and correction method for friction damping of a WTS (wind turbine simulator). The compensation and correction method comprises the steps of firstly, establishing a WTS transmission chain friction moment modification model; then, determining constant parameters of a WTS transmission chain model, and determining basic parameters of a to-be-simulated wind turbine; and finally, achieving torque output simulation of a practical wind turbine according to a WTS torque simulation formula. According to the compensation and correction method, the self friction moment of the WTS is solved at different temperatures and rotation speeds, damping compensation and correction of torque of the simulated wind turbine is carried out at the transmission chain cycle, the problem that the simulation is inaccurate due to improper damping friction compensation and correction is avoided, the problem that simulation of the WTS is inaccurate due to the fact that the WTS does not consider damping friction compensation and correction or the damping friction compensation and correction is improper is solved, and the accuracy and practicability of the WTS are effectively improved.