An endoscopic treatment device is provided. The present invention comprises: an insertion part which is equipped with an insertion tube in which a wire of a pre-determined length having a connection port at a front end is arranged to longitudinally move forward and backward in the internal cavity, and is inserted into a channel of an endoscope； a clip provided with a pair of pincers whose front ends are bent to face each other and whose longitudinal centers are crossed with each other； a clip operating part including a clip connecting body having a first connector at one end to be engaged on the clip and a second connector at the other end to be elastically connected to the connection port so as to connect the clip and the connection port, a stopper having a guide hole formed by penetration to insert and arrange the clip connecting body so that the first and second connectors are exposed at respective ends, and an outer moving ring inserted and arranged on the outer surface of the stopper so as to move to the clip, such that the clip operating part can splay or close the clip； and a cartridge having a first receiving part in which the clip is arranged to be splayed, a second receiving part in which the clip operating part is arranged and a third receiving part in which a ring separating part extending a predetermined length is arranged such that the first receiving part and the end part thereof face each other, thereby accommodating the clip operating part together with the clip. The purpose of the present invention is to provide an endoscopic treatment device which has an easy and simple structure, can reduce manufacturing costs, can be easily used and handled, can pinch a body tissue with a fine force, and can install a clip with one touch, thereby reducing treatment time.내시경용 처치구 장치를 제공한다. 본 발명은 선단에 접속구를 갖는 일정길이의 와이어가 내부공에 길이방향으로 전후진 이동가능하게 배치되는 삽입관을 갖추어 내시경의 채널로 삽입되는 삽입부 ； 선단이 서로 마주하도록 절곡되고, 길이중앙이 서로 교차되는 한쌍의 집게편을 구비하는 클립 ； 상기 클립과 걸림연결되는 제1연결구를 일단에 구비하고, 상기 접속
