[PROBLEM TO BE SOLVED] To provide an auxiliary device for puncture needle allowing an easier manipulation of puncture needles as well as being capable of improving the suture stability.[Solutions] The auxiliary device for puncture needle 10 was comprised of the plate-shape auxiliary device main body (11) on the surface of which the parallel guide grooves (16,17) were formed, and the plate-shape rotating-sliding contact part (12) rotatably attached to one of the edge parts of the auxiliary device main body (11). Moreover, the stabilization plate (13) was provided at the lower end part of the auxiliary device main body (11). And, the window part (14) for confirming the insertion-puncture needle-outer needle (21) and the pullout-puncture needle (30) was provided at the lower part side portion of the auxiliary device main body (11). Moreover, the projecting edge part (15) was formed at the upper end part of the auxiliary device main body (11), and the opening side width of a portion located at the projecting edge part (15) of the guide grooves (16,17) was made wider than the width of the other portion of the guide grooves (16,17).
