The invention discloses an exercise bicycle, comprising an exercise bicycle body, a bracket and an external controller, wherein the bracket and the external controller are arranged in the middle of a handle of the exercise bicycle; a control system of the exercise bicycle body comprises a processor, an exercise bicycle sensor, an electromechanical control module, a communication module and an executor; the exercise bicycle sensor, the electromechanical control module and the communication module are respectively connected with the processor respectively; the executor is connected with the electromechanical control module; the external controller is arranged on the bracket and connected with the communication module of the exercise bicycle body; and the external controller comprises a smart phone or a flat computer. Scientific guidance and system management of body-building activities of a user are carried out by utilizing the external controller such as the smart phone or the flat computer placed on the exercise bicycle bracket as a display and control terminal and by utilizing high performances of the smart phone and the flat computer. Thus, the body-building interestingness, the enthusiasm and the scientificity are effectively enhanced.