The present invention discloses a tricycle having two riding modes, the tricycle comprising: a frame, a single-wheel assembly and a first handlebar mounting base that are disposed at one longitudinal end of the frame, a double-wheel assembly and a second handlebar mounting base that are disposed at the other longitudinal end of the frame, a transmission mechanism disposed between the second handlebar mounting base and the first handlebar mounting base, and a handlebar assembly selectively disposed on the first handlebar mounting base or the second handlebar mounting base, the single-wheel assembly comprising a steering wheel and a first pedal for driving the steering wheel to roll, the double-wheel assembly comprising two wheels widthwise spaced apart and a second pedal for driving the two wheels to roll. The tricycle has a first riding mode with single front wheel and double rear wheels and a second riding mode with double front wheels and single rear wheel. The tricycle of the present invention may easily switch between two riding modes and may increase the fun of riding.