A tailgate inner-handle is vertically rotatably mounted and includes: cylinders having sliding holes formed in outer circumferential surfaces along a longitudinal direction; pistons inserted in the cylinders and having fitting holes; a handle mounted at one end of the piston; a carrying bar entering the cylinders through the sliding holes to be inserted in the fitting holes; a motor connected so as to slide the carrying bar; and a control module configured to apply power to the motor according to whether the tailgate is opened or closed. The inner-handle according to the present invention protrudes from the tailgate or returns to an original position according to an opening/closing state of the tailgate, so that a user may more easily and conveniently hold the inner-handle regardless of a height of the user without needing to adjust an opening angle of the tailgate.