Automobile product transportation containing box

The utility model discloses an automobile product transportation containing box, and relates to the technical field of automobile product transportation. Comprising a left half box, a connecting box plate is embedded into the inner wall of one side of the left half box in a clamped mode, and a right half box is arranged on the outer wall of the side, away from the left half box, of the connecting box plate in a clamped and sleeved mode. By arranging the left half box, the left half box and the right half box are assembled into the containing box body through connection of the connecting box plate, the left half box and the right half box slide towards the two sides of the connecting box plate with the midperpendicular of the connecting box plate as the reference axis according to the size of a loaded product, then space adjustment of the box body is achieved, and the product is placed in the box body; and meanwhile, the extended and elongated box body drives the left half box and the right half box to slide a