A flexible display device is disclosed which includes a body having a body bearing face; a flexible display screen having a fixed section and at least one bent section, where the fixed section overlies the body bearing face, and is connected with the body, and the bent section can be bent in a first axis direction, and folded to the backside of the body bearing face; and a housing enclosing the body and the flexible display screen, which can be opened in a second axis direction relative to the body to expose the flexible display screen entirely, where the first axis and the second axis are two intersecting axes parallel to the body bearing face.