The invention discloses a movable automatic righting device for reinforcement cage and vibratory hammer and a construction method of the device, relates to an auxiliary tool in the bored pile construction field and a construction method thereof, and aims to provide the movable automatic righting device for the reinforcement cage and the vibratory hammer and the construction method of the device, which have the advantage that the reinforcement cage can keep a vertical state under the vibration function of the vibratory hammer and then is implanted into a bored concrete pile. The automatic righting device for the reinforcement cage and the vibratory hammer comprises a vibratory hammer locator (1) and a sliding device (2); the sliding device (2) is mounted in a mode of sliding up and down; the vibratory hammer locator (1) comprises a vertically arranged sleeve (101) which is fixedly connected to the sliding device (2). The construction method for utilizing the automatic righting device for the reinforcement cage and the vibratory hammer comprises the following steps of (1) preparing; (2) lifting and aligning; (3) implanting the reinforcement cage.