Friction cycle ergometer

The invention relates to a friction cycle ergometer comprising a frame, a driving wheel, a driven wheel, a friction load wheel, pedals, a handlebar, a saddle, and a loading device. The pedal and the driving wheel are coaxially fixed; the driving wheel and the driven wheel are a large synchronous pulley and a small synchronous pulley respectively; the driving wheel and the driven wheel are driven via a synchronous belt; the driven wheel and the friction load wheel are coaxially and correspondingly fixed; the loading device comprises a friction rope, a transition wheel and a counterweight unit; the friction rope surrounding the friction load wheel and the transition wheel is tensioned; the friction rope is wound on the transition wheel by one to third cycles; the upper end of the counterweight unit is fixedly connected to the surface of the transition wheel, and the lower end of the counterweight unit is suspended. The friction cycle ergometer has the advantages that test data is reliable and accurate, the friction cycle ergometer can be used with various test schemes and fitness load schemes, the friction cycle ergometer can have multiple purposes, and the friction cycle ergometer can serve as an effective tool for the accurate evaluation of aerobic working capacity, the early discovery of sports risk and the guidance for scientific fitness.