The invention relates to the technical field of vehicle engineering, in particular to a sliding vehicle shifting device. The sliding vehicle shifting device includes a platform main structure, a traveling system, a shifting system, a lifting system, and a control system; the platform main structure includes a body, the body is of a box type integral structure, and a functional cabin is arranged in the body; the travelling system drives the body to travel; the shifting system, the lifting system and the control system are arranged in the functional cabin; the shifting system can move horizontally; and the control system controls other systems to move. The sliding vehicle shifting device is simple in structure, is controlled by an embedded technical CAN bus technology, and is fast in response speed; all the systems work independently, and mutual affection can be avoided; a dual-insurance brake manner of a holding operation rod and a self emergency brake is adopted, a dual brake measure can be performed in emergency, and the safety can be ensured well.