A container is provided herein. The container may include a container joint structure, wherein the container joint structure may include a top side rail provided along a top edge of the container, and provided with a groove-shape having an open top; and corner castings respectively provided at end points of the top edge of the container to be in contact with both ends of the top side rail, wherein a hole may be formed at an abutment surface of each corner casting to the top side rail, and the hole may allow an internal space of the top side rail and an inside of the corner casting to communicated with each other.