The invention discloses an electric bicycle control method based on the internal model principle. The method includes that the internal model principle is utilized to design a current loop controller to enable motor phase current to track the given sine wave signals. A speed given value is processed by a speed loop controller to serve as a current ring given amplitude, three ways of Hall sensor signals are calculated through a rotor section to obtain the period and the phase given by a current ring. Six ways of sine modulation signals are output from the current ring output through the wave modulation link to drive a three-phase voltage inverter to further enable a motor to run stably and efficiently. The method has the advantage sine phase current passes through a three-phase motor winding during operation of the motor. Compared with the traditional square wave control, the effects of small torque pulsation, low operation noise and long motor service life are achieved. The three-phase current is sine wave with the same phase as the three-phase counter electromotive force, the phase compensation link in traditional sine wave modulation is omitted, and the motor operation efficiency is improved. No complex coordinate transformation is required, the algorithm is simple and easy to achieve, and the requirement for controller is low.