A coating apparatus includes a first module and a second module constituting a coating area where a coating target is coated. The first module includes a first frame and a coating robot. The second module includes a second frame. When the first module and the second module are arranged to adjoin each other in a movement path direction in which the coating target relatively moves along the coating area, the first frame of the first module and the second frame of the second module that are arranged to adjoin each other are configured to be coupled together.