The present invention relates to a fillet injection rod for preventing subcutaneous tissue and blood vessel damage. The insertion tube for preventing subcutaneous tissue and blood vessel damage according to the present invention comprises a body portion 10 having an open hollow portion 11 formed at an end portion of an inner hollow cylindrical tube made of a metal material； A round portion 21 formed integrally with the body portion 10 at the other end of the body portion 10 and having a conical shape whose diameter decreases toward the end portion and is closed at the end portion in a convex curved shape A tapered portion 20 formed therein； The body 10 has a tapered portion 20 formed at one side thereof with a side end surface inclined downward at a predetermined angle from the outer peripheral surface of the body portion 10, A tapered portion 20 which is connected to the tip of the one inclined portion 31 and is parallel to the central axis a of the body portion 10, The upper end of the tapered portion 20 is formed to extend to the outer peripheral surface of the tapered portion 20 and the upper end of the tapered portion 20 is inclined upward at a predetermined angle from the tip of the horizontal portion 32, And an incision 30 formed by the other inclined portion 33 having a lower height than the upper end of the upper portion 31. According to the present invention, unlike the conventional technique in which the end portion is opened, a structure in which the end portion is clogged is adopted to prevent the inflow of the subcutaneous tissue or the blood vessel while being damaged inside the body, while the end portion has a sharp tapered shape, The rounded shape of the portion is rounded so that the conventional pointed end can be inserted into the subcutaneous tissue rather than tearing the subcutaneous tissue or the blood vessel so that the damage of the subcutaneous tissue and the blood vessel can be prevented as much as possible in the subcutaneous insertion
