A clutch device includes a first transmission unit for being coupled to a first transmission shaft, the first transmission unit having a plurality of accommodation structures a plurality of clutch units respectively arranged on the plurality of accommodation structures and a second transmission unit arranged at a position corresponding to the first transmission unit for being coupled to a second transmission shaft, the second transmission unit having a transmission surface wherein when the first transmission unit is rotated, the plurality of clutch units push the transmission surface of the second transmission unit for driving the second transmission unit to rotate with the first transmission unit, and when the first transmission unit is not rotated, the transmission surface is able to slide relative to the plurality of clutch units push, so as to allow the second transmission unit to rotate relative to the first transmission unit..離合器包含一第一傳動單元,用以耦接至一第一傳動軸,第一傳動單元係具有複數個容置結構;複數個離合單元,分別設置於複數個容置結構上;及一第二傳動單元,設置於第一傳動單元之相對應位置,用以耦接至一第二傳動軸,第二傳動單元係具有一傳動面;其中當第一傳動單元轉動時,複數個離合單元係頂推第二傳動單元之傳動面,以驅動第二傳動單元隨著第一傳動單元轉動;及其中當第一傳動單元不轉動時,第二傳動單元之傳動面可相對於複數個離合單元滑動,以允許第二傳動單元可相對於第一傳動單元轉動。100‧‧‧離合器110‧‧‧第一傳動單元120‧‧‧離合單元130‧‧‧第二傳動單元