It provides a technology including a new structure of a needle and a cutting force transmission structure that can efficiently apply a precise cutting force to the needle while minimizing the hand movement required to move the plunger in order to apply negative pressure to the plunger of the syringe. For this purpose, a biopsy syringe including a rotary needle according to an embodiment of the present invention is configured to be rotatable, has a suction hole formed on at least a side thereof, and a side opposite to the rotational direction of the longitudinal side of the suction hole A needle formed in the cutting edge, configured to suck the sample cut according to the rotation of the cutting edge through the hollow portion according to the pressure of the cutting edge； A cylinder having a hollow portion for suctioning and storing the collected tissue from the suction hole and extending along the longitudinal direction, and having a guide groove formed in one region in the longitudinal direction； A plunger accommodated in the hollow portion of the cylinder and formed to be movable along the longitudinal direction； A rack gear part provided on the outer surface of the cylinder by being coupled to the plunger so as to be fixed to the end side of the plunger facing the suction hole and to the opposite end side of the plunger, and being formed to extend while spaced apart from the central axis column of the plunger in the longitudinal direction； A plunger operation unit fitted in the guide groove of the cylinder and moved in the longitudinal direction to move the plunger in the longitudinal direction by applying a longitudinal force to the rack gear； And a power transmission device for rotating the needle by converting the longitudinal movement of the plunger operation unit into rotational movement.주사기의 플런저에 음압을 가하기 위하여 플런저를 이동시키는 데 있어서 필요한 손동작을 최소화시킬 수 있는 동시에 니들에 정교한 절단력을 효율적으로 가할 수 있도록 하는 니들의 새로운 구조 및 절단력 전달 구조를 포함하는 기술을 제공한다. 이를 위한 본 발명의 일 실시예에 따른 회전형 니들을 포함하는 생검용
