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In order to realize the performance index of wind speed in environmental simulation wind tunnel, the dynamic system is designed. This paper introduces the aerodynamic profile configuration of the environmental simulation wind tunnel, expounds the working principle of the power system, including the main drive loop, heat dissipation auxiliary system and control system, gives the calculation and selection process of the 10kV 4MW power motor and analyzes the motor characteristic curve.The high voltage inverter is adopted to realize the speed regulation drive of the power system, and the high quality power utilization is realized through 48 pulse rectifier perfect non-harmonic vector frequency conversion.Through the Modbus TCP fieldbus protocol, the real-time communication and data interaction between the master computer and the local control system are realized, and the software workflow of the control system is presented.Through the wind tunnel nozzle tests with different configurations, the relationship between the axial power and the test temperature, the motor temperature rise characteristics, and the relationship between the oil supply pressure and the shaft rise under the conditions of maximum wind speed and extreme temperature load are analyzed and studied.The experimental results show that the system has good matching performance of wind speed and temperature for environmental simulation wind tunnel, and has excellent environmental adaptability for carrying out relevant experiments.