The invention discloses an adjustable intelligent bicycle. The adjustable intelligent bicycle comprises a front wheel, a back wheel, a front fork, handlebars, a chain wheel, pedals and a bicycle seat,and is characterized by also comprising a beam connected with the front fork and the bicycle seat, a front slant beam connected with the front fork and the chain wheel and a back slant beam connectedwith the back wheel and the front slant beam; an installing groove is formed in the length direction of the front slant beam, and an installing hole is formed in the end, close to the front slant beam, of the back slant beam; the pedals comprise pedal shafts and pedal frames, supporting pipes are arranged in the pedal frames, sleeve the pedal shafts and are rotationally connected with the pedal shafts, thread heads extending out of the supporting pipes are arranged at one ends of the pedal shafts, connecting columns are arranged at the other end of the pedal shafts, the connecting columns andthe pedal shafts are coaxial and are of an integrated structure, gaskets are arranged on the connecting columns, limiting protruding rings formed by spin rivets are formed in the outer ends of the connecting columns, and end covers are arranged at the ends, close to the limiting protruding rings, on the supporting pipes; supporting sleeves are also arranged at the two ends of the pedal shafts, and rotating sleeves are arranged between the supporting sleeves and the supporting pipes.