The utility model discloses a high tower wind induced vibration TMD vibration damping testing device comprising a high tower model. The high tower model comprises a pedestal, a vertical column, a connecting member, a vibration source support, and a motor. The pedestal is fixedly connected with the lower end of the vertical column, and the upper end of the vertical column is fixedly connected with the connecting member. The vibration source support comprises a circular bottom plate, a supporting pipe, and a circular top plate. The circular bottom plate is connected with the circular top plate by a bolt inserted in an inner cavity of the supporting pipe. The circular bottom plate is in a bolt connection with the top end of the connecting member by a fixed bolt. A span wire disposed on the bottom part of the circular bottom plate is connected with a top part of a mass ring disposed on the outer part of the connecting member in a sleeved manner. A gap between the inner cylindrical surface of the mass ring and the outer side wall of the connecting member is provided with steel wire rope vibration isolators. The steel wire rope vibration isolators are disposed along the outer side wall of the connecting member in a peripheral direction. The motor is disposed on the circular top plate, and a motor output shaft is connected with an eccentric wheel, which is disposed in the gap between the circular bottom plate and the circular top plate in a clamped manner. The high tower wind induced vibration TMD vibration damping testing device is advantageous in that the vibration can be greatly reduced, the wind induced vibration under various working conditions can be simulated, the production costs are low, and the operation is convenient.