The invention discloses a multi-purpose anus examination and treatment device. The multi-purpose anus examination and treatment device is composed of a fixing device, an examination and treatment device body and a computer controller, wherein the examination and treatment device body is arranged at the lower end of the fixing device, and the examination and treatment device body is connected withthe computer controller through a data line. During work of the device, a patient lies on a bed board, the hips are placed at an anus observation opening, the computer controller controls the normal operation of the device, a doctor operates a console to control the examination and treatment device body, a first opening device and a second opening device slowly open the anus outwards, the examination and treatment device body carries out the operations including checking, washing, treatment and the like according to the condition of the patient, and a probe device can extend into the anus to observe the condition of the anus. The device disclosed by the invention realizes intelligence, integration and automatic operation, is convenient to move, can accurately find the diseased position according to the needs of the patient, can check the interior of the anus, is suitable for the patients who are bedridden for a long time or people having inconvenience in moving, can be used for washingand treating the diseased position, and is thorough and sanitary in washing.