The invention relates to the technical field of buffering devices, and discloses a mechanical buffering support. The mechanical buffering support comprises a shell, a supporting shaft is fixedly connected in the shell, and a rotary ring is coaxially connected to the supporting shaft; the inner wall of the shell is fixedly connected with a clapboard; the rotary ring is fixedly connected with a first pressing plate and a second pressing plate; a supporting rod is hinged to the rotary ring, and fixation blocks are hinged to the supporting rod; two air cylinders are fixedly connected to the interiors of the fixation blocks, pistons are slidably connected to the interiors of the air cylinders, and first racks are fixedly connected to one sides of the pistons; two supporting pillars are fixedlyconnected to the interiors of the fixation blocks, two second racks are slidably connected to the fixation blocks and meshed with gears, the gears are meshed with the first racks, and pulling ropes are connected between the first pressing plate and one second rack and between the second pressing plate and the other second rack respectively. The mechanical buffering support has the advantages thatvibration of mechanical equipment is reduced, and damping and soundproofing are achieved.