The invention discloses an anus cleaning device used after defecating. The anus cleaning device used after defecating comprises an anus cleaning structure and a lifting structure for driving the anus cleaning structure to move vertically; the anus cleaning structure comprises a rack, a cover plate assembly, a toilet bowl assembly, a water tank assembly and a cover plate opening and closing mechanism; and the cover plate assembly, the toilet bowl assembly and the water tank assembly are successively arranged on the rack from top to bottom. The anus cleaning device used after defecating has the advantages of compact structure, small use space, simplicity in operation and capabilities of improving the comfort level of a user and reducing workload of nursing staff.