The invention aims at providing an intelligent rail traffic turnover compartment butt joint, separation and reunion method, and aims at solving the technical problems about butt joint, separation andreunion between a turnover compartment and a platform. The intelligent rail traffic turnover compartment butt joint, separation and reunion method comprises the steps that when the turnover compartment arrives at the platform, an upper hook butt joint drive mechanism drives an upper hook frame to move downwards; a lower hook separation and reunion drive plate is located at the foremost end under the action of a lower hook separation and reunion reset spring, a lower hook locking rotation wheel upwards jacks a lower hook locking rod under the action of a lower hook separation and reunion driveblock, the upper end of the lower hook locking rod is inserted in a lower hook locking hole of a butt joint lower hanging buckle through a lower hook locking cavity, and the butt joint lower hanging buckle and a lower hook butt joint machine case are fixed; after a butt joint detection switch detects that a butt joint upper hook and the butt joint lower hanging buckle are in butt joint and are buckled, a brake electric control switch is started, and a brake mechanism conducts electromagnetic braking on an upper hook sliding plate on a butt joint suspension; and when the turnover compartment leaves the platform, the actions are reverse to the above actions.