A hinge structure comprises a fixed part, a rotating part and pivotal component. The rotating part is connected with the fixed part rotatablely by the pivotal component. The rotating part is provided with a side plate on which a pivot hole and a limited block are arranged. The limited block is close to the pivot hole. The fixed part comprises a support provided with a deformation axle hole. The pivotal component comprises a pivot and a locking firmware. The pivot comprises a deformation axis and a limited tank arranged at one end of the pivot. The pivot drills through the pivot hole of the rotating part and the deformation axle hole of the fixed part. The locking firmware is fixed at one end of the pivot. The deformation axis and the deformation axle hole of the fixing part have no rotatable fit. The limited block is contained in the limited tank to limit the rotation of the rotating part between a first limit position and a second limit position relative to the fixed part. The hinge structure can limit the rotational angle of the rotating part relative to the fixed part well and has good limit effect and stability.