The present invention relates to a multi-joint support device formed by connecting a plurality of links to each other, and more particularly, it is possible to firmly fix and support at an exact position desired by a user, and to conveniently fix and release the support device. Regarding multi-joint support devices that can be carried out quickly, are easy to manufacture and miniaturize, are excellent in durability, and have excellent sealing properties of the parts where links are connected to each other to prevent the inflow of foreign substances, and are capable of precise movement and fixation. As, The multi-joint support device according to the present invention is formed including a plurality of links 10 connected to each other, the device holder is detachably coupled to the front end, the rear end is fixedly coupled detachably to the structure, and the front Through the operation of the handle portion 70 provided on one side, the connecting portions of the plurality of links 10 are fixed so as not to move to each other, or the connecting portions of the plurality of links 10 are formed so as to be mutually rotated and released. A multi-joint support device comprising: a front link connecting adapter 21 formed with an inner hollow and having a front detachably coupled to the other side of the link 10 located in the front； It is formed as an inner hollow, the operation wire 12 is provided to penetrate along the inner hollow, is formed to be movable forward and backward together with the operation wire 12, and a locking protrusion 31 is provided on the rear outer surface. A wire central binding pipe 30； It is rotatably provided along with the wire central binding pipe 30 around the front circumference of the wire central binding pipe 30, and the front of the wire central binding pipe 30 is intermittently rotated according to the forward and backward movements. A rotation intermittent portion 40 provided in the hollow inside of the link connection adapter 21； The
