According to one embodiment of the present invention is to provide an automatic excrement treatment apparatus and excrement collection diaper to improve the adhesion for a user, and the automatic excrement treatment according to an embodiment of the present invention comprises: an excrement collection diaper； a treating unit to suck in and treat the excrement inside the excrement collection diaper； and a treatment hose with which the excrement collection diaper and treating units are connected. The excrement collection diaper comprises: a plate part with a first excrement flow path in a concave shape with respect to both sides and a floor surface to collect the excrement； a base member having a side wall extended upwardly from the plate part； and a case member which is arranged on the upper part of the outer side of the base member and contacts the user. The case member comprises: a first wall part which is formed corresponding to the plate member and is placed around the hip region of the user； a second wall part which is extended upwardly from the first wall part corresponding to the side wall and is placed on the groin region of the user； a third wall part which is extended from the upper end of the second wall part to face the first wall part and is placed in the abdominal region of the user； a first sealing part which is hung on the first, second and third wall parts and is continuously in a close contact with the abdominal region of the user； and a second sealing part which is formed in the inner side of the first sealing part and is continuously in a close contact with the hip region and groin region of the user.본 발명의 일 측면은 사용자에 대한 밀착성을 향상시키는 자동 배설물 처리장치 및 그 배설물 수집 기저귀를 제공하는 것에 있으며, 이러한 본 발명의 실시예에 따른 자동 배설물 처리장치는, 배설물 수집 기저귀；와, 배설물 수집 기저귀 내부의 배설물을 흡인하여 처리하기 위한 처리 유닛；과, 배설물 수집 기저귀와 처리 유닛을 접속하는 처리 호스；를 포함하며, 배설물 수집 기저귀는, 사용자의 배설물을 수집하기 위하여 양 측면과 바닥면에 의해 오목한 형상으로 정의되는 제1오물 유로가 구비된 플레이트부와, 플레이트부에서 상측으로 연장 형성되는 측벽부를 가지는 베이스 부재；와, 베이스 부재의 외측 상부에 배치되어 사용자에 접촉되는 케이스
