A flexible display device that includes a first body, a second body located side by side with the first body and is able to move relative to the first body, a flexible display that can change an area exposed to the outside by relative movement between the first body and the second body, and a link part fixed to one side of the first body and the second body, respectively, and that is deformable between the first body and the second body, so as to guide the second body to move toward the first body.