Abstract: A two-stage open tailgate includes a handle assembly disposed at an outer surface of a half door, wherein the half door is opened when the handle assembly performs a first operation, a full door disposed at a rear surface of the half door and opened in an integrated state with the half door when the handle assembly performs a second operation, a first striker mounted to one end of the half door, a second striker mounted to a vehicle body such that the second striker is disposed adjacent to the first striker in a closed state of the half door, a dual latch formed at one end of the full door at positions respectively corresponding to the first striker and the second striker, wherein the handle assembly and the dual latch are spaced apart from each other when the half door is opened.