Load-bearing bottom support structure

The utility model discloses a bearing bottom support structure which comprises a bottom support body, a through groove is formed in the outer wall of the top of the bottom support body, a movable reinforcing steel plate is arranged in the through groove through an elastic assembly, and a plurality of buckle assemblies are arranged on the outer wall of the periphery of the bottom support body. And a box body is installed above the bottom support body through a buckle assembly, the bottom edge of the box body abuts against the top surface of the reinforcing steel plate, and the bottom of the box body is embedded into the through groove. The reinforcing steel plate is embedded in the bottom support body, so that the strength of the whole bottom support can be improved, the bearing capacity of the whole bottom support is greatly improved, the situation that the boarding box is broken when goods are transferred is avoided, and the service life of the boarding box is prolonged; and a buffering distance can be reser