The invention discloses an intelligent shared bike which comprises a frame, a bike head tube located on the front part of the frame and used to control the direction of a front wheel, as well as a seat installed on the upper end of the middle part of the frame, wherein an adjustment device used to adjust the seat height is connected between the seat and the frame, and an input device used to recognize a user's identity information is installed on the bike body; and the input device and the adjustment device are electrically connected to the controller, and the controller controls the adjustment device to adjust the seat to a corresponding set height according to the different users' identity information recognized by the input device. The shared bike disclosed by the invention has the advantages that the seat is adjusted by a seat adjustment button to a comfortable height suitable for riding when the shared bike is used for the first time; in subsequent use, the shared bike can automatically adjust the seat height to the height state set last time after recognizing a corresponding user identity; the users can ride the bike comfortably; and the users' experience can be improved.