The present invention relates to a plastic cannula device for hemodialysis having a side hole and a cannula tube separated in two directions, and more particularly to a cannula device for hemodialysis, comprising a needle having a passage for blood, a tube And a cannula tube having one end connected to the cannula and the other end separated in two directions, wherein the cannula is made of plastic, thereby lowering the risk of blood vessel wall puncture during hemodialysis And the movement of the hemodialysis patient can be free even in a state where the cannula is fixed. The present invention also relates to a method of using a plastic cannula device for hemodialysis having a side hole and a cannula tube separated in two directions, and more particularly to a method using a cannula device for hemodialysis, comprising the steps of: (1) (2) attaching the needle to the first cannula tube of the step (1) so that the cannula is connected to the cannula tube by the cannula tube and the second cannula tube, (3) the blood is moved into the path of movement of the needle of step (2)； (4) the needle of step (3) is inserted into the first cannula tube And separating the first cannula tube from the first cannula tube, and (5) moving the blood of the hemodialysis patient transferred to the needle of step (3) to the second cannula tube, As it constituted by any stick, to reduce the risk of blood dialysis blood vessel puncture and the rear wall, and in that the cannula is to be free of a hemodialysis patient, even when in motion through the feature of the configuration thereof. According to the plastic cannula device for hemodialysis having a side hole and a cannula tube separated in two directions proposed in the present invention, a plastic material device used in a general venous cannula is applied to a hemodialysis needle By including the cannula, it is possible to prevent the bleeding from the back wall of the dialysis route by lowering the risk of the back wall of the bloo
