The present invention relates to a connector of a functional working machine and, more specifically, relates to a connector of a functional working machine through which the working machine can simply and easily be connected and installed to the connectors of the working machine mounted on a front and a rear of a vehicle (such as a tractor and the like) for working. The present invention provides a connector of a working machine, comprising: a fixing frame (100) having a fixing body (110), an attraction holding part (120), a support holding part (130) and a fixing part (140)； and a coupling frame (200) having a coupling body (210), a propulsion coupling part (220), a multistage coupling part (230) and a coupling fixing part (240). The present invention provides a connector of a working machine, wherein the coupling frame formed of the coupling body has a shape of a sectioned head part. Also, the present invention provides the connector of the working machine, including a coupling device (150) consisting of a casing part (151), a coupling part (152), a rod part (153), a suspension part (154), and a tension part (155) to increase a detachable function of the fixing frame and the coupling frame. Also, the present invention provides a connector of a working machine, in which the multistage coupling part (230) of the coupling body includes a multistage coupling body (231), an upper connecting part (232) and a working machine connecting part (233) wherein a width and a length of the working machine connecting part (233) can be controlled. Moreover, the present invention provides a connector of a working device which has an adherent foreign substance preventing function by adding a soil splattering preventing plate (160) to the fixing body (100).본 발명은 작업기 연결장치에 관한 것으로, 보다 상세하게는 작업용 자동차(트랙터 등)의 전면과 후면에 장착된 작업기 연결기에 작업기를 간단하고 수월하게 연결하고 설치할 수 있는 기능성 작업기 연결장치에 관한 것이다.본 발명은 고정본체(110), 인력걸이부(120), 지지걸이부(130), 고정부(140)를 포함하여 구성된 고정프레임(100),결합본체(210), 추진결합부(220), 다단결합부(230), 결
