A foldable display device is provided, which includes a foldable body, a flexible display panel, and a keyboard film. The keyboard film is housed on one side of the foldable body when not in use, and it can be flipped to one side of the flexible display panel away from the foldable body to match a virtual keyboard area to realize a function of simulating a feel of an external physical keyboard. Therefore, work efficiency of the foldable display device in a notebook mode as well as portability are improved.