The invention discloses a carriage buffering method during motor-home emergency braking. A carriage is arranged on a sliding rail and moves, first elastic sheets and second elastic sheets are bent and deformed, and normal-degree inertia impact force is absorbed; the first elastic sheets and the second elastic sheets are overly bent, the deformation degree is over large, brittle expansion pipes are extruded, and further deformation is carried out to absorb the inertia impact force; the carriage further moves frontwards, the slope surfaces of sliding columns and the slope surfaces of bases can be mutually rubbed, the sliding columns can slide in the directions of slopes to drive sliding bases to move in sliding grooves, spring systems are extruded to offset the impact force. Compared with the prior art, according to the carriage buffering method during motor-home emergency braking, when motor home emergency braking is carried out, in order to prevent persons in the carriage from being injured by inertia, the sliding columns capable of moving in the sliding grooves and the bases are rubbed, the direction of the impact force brought by inertia is converted into the transverse direction from the longitudinal direction, displacement and space of buffering are increased, and the safety of the persons in the carriage is guaranteed.