A high-seat folding chair includes two pairs of front legs and rear legs pivotally connected with each other so as to be operable to unfold or fold the folding chair. When unfolded, each of the front legs and the rear legs form an angle relative to a horizontal plane. A footrest is mounted between the two front legs. Two opposite portions of the footrest bend symmetrically in a horizontal direction to form horizontal portions, respectively. The two horizontal portions further bend upward to form inclined extensions, and a portion of each inclined extensions forms a flat portion. An angle defined between the inclined extension and the horizontal portion is equal to an angle defined between the front leg and the horizontal plane. The inclined extensions of the footrest are respectively affixed with the two front legs, such that the footrest is mounted in horizontal.