The utility model relates to a biparting plank of area buffering moves a structure, include the door frame, shift up movable rail and say and the left -hand door board, door frame upper portion crossbeam on transversely install and shift up the movable rail way, the door frame around in the dislocation remove and install left -hand door board and right door plant, the movable rail that shifts up say including last fixed bolster and track support, last fixed bolster under around the terminal surface middle part symmetry install two track supports, arranged the track groove on the lower terminal surface of track support, left -hand door board and right door plant on the end face two ends symmetry install the guide pulley that matches with the track groove of track support. The utility model has the characteristics of simple structure, simple to operate, application scope broaden, have buffer function, avoid direct impact between the AND gate, improve the life of product etc.