Abstract-By using Matlab/Simulink as a development and simulation platform, a wind turbine simulation-testing system was designed with the data from GH Bladed software and IEC61400-1 standard. Moreover, a whole dynamic model of a MW-class variable speed constant frequency Doubly-Fed wind generator is presented, including wind regime, drive train and inverter generator system. Furthermore, with the simulationtesting, closed-loop test and comprehensive dynamic test of control system can be realized. In the end, the experimental results illustrate the validity and feasibility of the system and it will provide a new way for wind turbine simulation and testing.