A clutch structure, comprising: a stationary casing, which has an outer circumference to which a motor is mounted, the motor comprising a worm that extends into an interior of the stationary casing; an actuation unit, which is arranged in the interior of the stationary casing, the actuation unit comprising a rotary disc and a push disc, the rotary disc having a circumference that is formed with a worm gear in mating engagement with the worm, at least two rollers being arranged between the rotary disc and the push disc and equally spaced from each other; an input shaft, which is rotatably extended into a center of the rotary disc of the actuation unit; a push unit, which is mounted on the input shaft, the push unit comprising a push bracket, a spring holder, and a bowl-shaped spring plate, wherein the push bracket is coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, the spring holder being rotatably arranged on the push bracket, the bowl-shaped spring plate being supported between the spring holder and the push disc; a clutching unit, which is arranged on the input shaft at one side thereof that is adjacent to the push unit, the clutching unit comprising a plurality of first lining plates and a plurality of second lining plates that are alternately arranged in a spaced manner, wherein the first lining plates are coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, and the second lining plates are arranged in a manner of being rotatable relative to the input shaft; and an output casing, which is rotatably mounted in the interior of the stationary casing at one side thereof that is adjacent to the clutching unit, the output casing being coupled to the second lining plates in a manner of being parallel slidable and synchronously rotatable with respect thereto. a stationary casing, which has an outer circumference to which a motor is mounted, the motor comprising a worm that extends into an interior of the stationary casing; an actuation unit, which is arranged in the interior of the stationary casing, the actuation unit comprising a rotary disc and a push disc, the rotary disc having a circumference that is formed with a worm gear in mating engagement with the worm, at least two rollers being arranged between the rotary disc and the push disc and equally spaced from each other; an input shaft, which is rotatably extended into a center of the rotary disc of the actuation unit; a push unit, which is mounted on the input shaft, the push unit comprising a push bracket, a spring holder, and a bowl-shaped spring plate, wherein the push bracket is coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, the spring holder being rotatably arranged on the push bracket, the bowl-shaped spring plate being supported between the spring holder and the push disc; a clutching unit, which is arranged on the input shaft at one side thereof that is adjacent to the push unit, the clutching unit comprising a plurality of first lining plates and a plurality of second lining plates that are alternately arranged in a spaced manner, wherein the first lining plates are coupled to the input shaft in a manner of being parallel slidable and synchronously rotatable with respect thereto, and the second lining plates are arranged in a manner of being rotatable relative to the input shaft; and an output casing, which is rotatably mounted in the interior of the stationary casing at one side thereof that is adjacent to the clutching unit, the output casing being coupled to the second lining plates in a manner of being parallel slidable and synchronously rotatable with respect thereto.