The invention discloses an exercise bike. The exercise bike comprises a base, a running belt, a support, a belt box, a pedal, a large
flywheel, a foot plate, a seat, a hand bar, an operation instrument and a displayer, wherein the running belt is arranged on the base, the belt box is installed on the support, the large
flywheel is arranged in front of the belt box, the operation instrument and the displayer are arranged at the middle of the hand bar, and the foot plate is installed on the support below the hand bar; the seat is installed on the support through a rotary shaft, and an magnetic
damper is installed on the rotary shaft; dampers are arranged on the belt box and the large
flywheel; the
damper on the rotary shaft and the
damper on the large flywheel are connected with the operation instrument. The exercise bike has both the function of a running
machine and the function of the exercise bike, not only can the leg portions be exercised, but also the
waist and
abdomen portions and the arm portions can be exercised, an exercising effect evaluator is arranged inside the operation instrument, real-time evaluation is conducted on the exercising condition, the evaluation effect is displayed on the displayer, the displayer can be externally connected with a media device, and the exercising is enabled to be more scientific, full and interesting.