A foldable display apparatus is provided. The foldable display apparatus includes a first substrate, a second substrate, a flexible display panel having a first display area, a pliable display area and a second display area, which are sequentially connected, a first hinge base, a second hinge base, and a rotary connecting rod. An end of the rotary connecting rod is connected to the first hinge base, and the other end is connected to the second hinge base. When the rotary connecting rod rotates to the folded state, the first substrate and the second substrate are paralleled to and opposite each other.