To provide a casing structure of an outdoor panel in which a door handle of the outdoor panel is easily closed, and to which an excessive force is not applied.

In the waterproof structure of the outdoor panel, a rod bar is configured to come in contact with a vertical stopper fitting before a claw fitting comes in contact with the stopper fitting when the door is closed. Depending on the deformation of the door and the thickness of a packing and also on a play at the connection part of the rod bar, the rod bar can be removed from the hole formed in the vertical stopper fitting, thus causing the door not to be properly closed. Then, the door is provided with a handle with a claw fitting and two rod bars each vertically moving along with the rotation of the handle, and the body is provided with a first stopper fitted with the claw fitting and a second stopper fitted with the rod bar.