The invention discloses a breaststroke and dragon walking dual-purpose vehicle of a round steel framework. The vehicle comprises a structural main component, a handle bar, two balance wheels, a front fork, a front wheel and a brake. The vehicle is characterized in that: the structural main component comprises a main component frame, two sleeves, a lock piece, a handle bolt and a screw hole; transverse bent upper and lower sheets of the main component frame are provided with holes, the longitudinal bent two sheets of the main component frame are also provided with holes and rotationally connected with the lock piece, and the lock piece is also rotationally connected with the handle bolt; the main component frame is welded with the two sleeves, and the two sleeves are rotationally connected with two swing rods; the balance wheel comprises a swing rod, a universal wheel and a plastic pedal; the main component frame is rotationally connected with a handle bar sleeve; the handle bar comprises a vertical tube, a handgrip and the handle bar sleeve; the front fork is hooked, and the front wheel is arranged on the lower hook of the front fork; and the brake is arranged on the front wheel. The vehicle is multifunctional and has a simple structure.