The invention relates to an electric rehabilitation bicycle, and belongs to the field of sports equipment. The electric rehabilitation bicycle comprises a motor, a handle, a tightening button, an adjusting button, a height adjusting button, a vehicle frame, a saddle, an adjusting screw knob, an adjusting knob, pedals, a bicycle pedal assembly, a V-belt, a sprocket wheel and a centre shaft rotating wheel. In front of the vehicle frame, the handle is put into the tightening button, and is inserted into the adjusting button, and then is vertically inserted into a square tube of the vehicle frame, at the rear part of the vehicle frame, the saddle is inserted into the adjusting knob, and then is inserted into the adjusting screw knob, the bicycle pedal assembly is installed on the lower part of the vehicle frame, the pedals are installed at two sides of the bicycle pedal assembly, the motor is connected with one side of the centre shaft rotating wheel through the V-belt to form a rolling element, and the other side of the centre shaft rotating wheel is connected with the bicycle pedal assembly to form a rolling element. When the electric rehabilitation bicycle is used, a person sits on the saddle, and holds the handle through two hands, and steps on the pedals through two feet, and then the motor drives the pedals to move. The handle can be adjusted to an appropriate position through various adjusting knobs. The saddle can be adjusted to an appropriate position through the adjusting knobs.