Surveying instrument supporting structure

The utility model belongs to the technical field of supporting structures, and particularly relates to a surveying instrument supporting structure which comprises a mounting seat, a bearing seat is fixedly mounted in the center of the bottom end of the mounting seat, a box door is mounted on the front side of the bearing seat in a hinged mode, a mounting cavity is formed in the bearing seat, and a height adjusting assembly is arranged in the mounting cavity. The height adjusting assembly is connected with a second screw rod, a first mounting block is fixedly mounted at the top end of the sliding block, the first mounting block is rotationally connected with one end of a second movable rod, a sliding groove is formed in the other side of the bottom end of the second rotating plate, and a movable block is rotationally connected with one end of a first movable rod; the second rotating plate is embedded in the center of the bottom end of the second placement seat and rotationally connected with the center of the