A lifting device of a display apparatus to allow for an upward/downward movement of the display apparatus and to improve a utility in installation space. The lifting device includes at least one wire coupled to the display apparatus, a lifting unit connected to the wire to move the display apparatus in a first direction or a second direction using a first force acting on the display apparatus. The lifting unit includes a position retainer to apply a second force counter to a weight of the display apparatus in order to maintain the display apparatus at a position, if the first force is removed.