The present invention discloses a needle dismounting device for detaching a needle and a syringe that are connected to each other. The needle dismounting device comprises a base, a driving component, a disassembling component and a pushing component. One end of the drive assembly is disposed on the base. One end of the disassembly assembly is coupled to the drive assembly away from one end of the base. Further, the detaching assembly includes a winding member located at one end of the detaching assembly away from the driving assembly and forming a detaching space. The disassembly components are interlocked with each other. Wherein, when the driving component drives the disassembling component to rotate, and part of the needle is located in the dismounting space, the reeling member disassembles the needle to separate the needle from the syringe, and the pushing component is pushed against the component The needle leaves the disassembly space.本創作揭露一種針頭拆卸裝置，用以拆卸相互連接之一針頭及一針筒。該針頭拆卸裝置包含一底座、一驅動組件、一拆卸組件及一推抵組件。該驅動組件之一端設置於該底座。該拆卸組件之一端連接於該驅動組件遠離該底座之一端。此外，該拆卸組件包含一捲針構件，該捲針構件位於該拆卸組件遠離該驅動組件之一端，並形成有一拆卸空間。該拆卸組件相互連動。其中，當該驅動組件驅動該拆卸組件旋轉，且部分之該針頭位於該拆卸空間時，該捲針構件拆卸該針頭，以令該針頭與該針筒相互分離，該推抵組件並推抵該針頭離開該拆卸空間。
