Independent blade control (IBC) technology can improve the rotor aerodynamic environment and reduce the vibration load of hub. The rotor aerodynamic response in unsteady flow is calculated by using Leishman-Beddoes dynamic stall model and dynamic inflow model. The rotor aeroelastic dynamic model by software ADAMS is built to calculate the hub loads. By periodic variable pitch control applied with two-and three-order harmonic, the law of vibration reduction can be studied on the simulation of individual blade rotor. It is shown that the vibration level can be lower by changing the amplitude and the phase of the pitch harmonics.