The present invention relates to a cartridge having an embedded clip unit of an endoscope clip treatment mechanism, which is used to suture a bleeding site or the like by being inserted into the body through an endoscope. According to the present invention, the cartridge having an embedded clip unit of an endoscope clip treatment mechanism comprises: a body (10) having first and second receiving chambers (101, 102) inserting a clip unit (50) in a state in which a clip is opened; upper and lower pressing pieces (30) extending on a rear side of the body to be separated from each other vertically; a coupling hole (13) formed in corresponding surfaces of the upper and lower pressing pieces and formed inside a connection portion (12) to communicate with a rear end of the second receiving chamber; and a leading-in pipe insertion portion (40) formed to be recessed in the longitudinal direction from the coupling hole to a rear end thereof such that a front end portion of a leading-in pipe (1) is inserted into the leading-in pipe insertion portion. The body further has: support groove portions (16, 16′) formed to be recessed from upper and lower surfaces on the left and right of the first and second receiving chambers (101, 102); and support plates (17, 17′) integrally formed to horizontally traverse the upper and lower middles of inner walls of the support groove portions. The cover has a pair of support pieces (22) provided on the inner surface thereof to extend so that an interval therebetween becomes narrow toward inner ends thereof, corresponding to opened arms of the clip. Thus, productivity can be significantly improved.본 발명은, 내시경을 통해 체내에 삽입노출시켜 출혈부위 등을 봉합하는데 사용하는 내시경용 클립처치기구의 클럽유닛이 내장되는 카트리지에 관한 것이다.이와 같은 본 발명 내시경용 클립처치기구의 클럽유닛이 내장되 카트리지는, 클립이 벌어진 상태로 클립유닛(50)을 삽입하는 제1,2수용실(101)(102)을 구비하는 몸체(10)와, 상기 몸체의 후측부에 상하로 격리되게 연장되는 상·하가압편(30)과, 상기 상·하가압편의 서로 대응하는 면에 제2수용실의 후단과 연통하게 연결부위(12)의 내부에 천공되는 결합구(13)와, 상기 결합구로부터 후단까지 길이방향으로 함몰형성되어 도입관(1)의 전단부를 삽입하는 도입관삽입부(40)을 포함하여 구