The invention relates to a hinge structure which comprises a rotary shaft and a first support, a second support and a torsion element which are sheathed with the rotary shaft, wherein the torsion piece is connected with the first support and the second support respectively so as to generate torsion to force the first support to rotate relatively to the second support. The hinge structure also comprises a buffering element sheathed on the rotary shaft, and the first support is provided with a locating end matched with the buffering element. One of the locating end and the buffering element is provided with a boss, and the other one is provided with a groove for holding the boss. The boss and the groove are matched to limit the angle of the first support relative to the second support due to automatic rotation under the action of the torsion element. The hinge structure has stable automatic flick angle and high durability. The invention also provides an electronic device using the hingestructure.