An automatic excretion cleaner is provided to adjust the positions of a user's body and a toilet case automatically according to the difference in the physical shape of a patient with a simple structure. An automatic excretion cleaner includes a toilet case(A) mounted to enclose the excretion part of a body. The toilet case includes a support plate(100) and a lifted portion(200) connected to the rear end portion of the support plate. The support plate portion includes an excretion channel(101) that is formed as a concave portion and a discharge portion. The lifted portion includes a front surface portion and a fixing unit that is disposed on the front end side of the lifted portion to set the positions of a body and the toilet case. The fixing unit has a contact portion and an adhesion member.
