The invention discloses an anus cleaner, comprising a bottle body, wherein the inside of the bottle body is a hollow structure; the bottom of the bottle body is provided with a bottle bottom, and the bottle bottom is curved; the center of the bottle bottom is provided with a through hole, and a steel ball check valve is installed in the through hole; the end of the bottle body away from the bottle bottom is provided with a bottleneck, and the bottleneck is provided with threads; the bottleneck is equipped with a cleaning head; the bottom of the cleaning head is provided with threads, and the threads are provided on a mounting table; the mounting table and the bottleneck are matched and connected with the same size; the top of the mounting table is provided with a cleaning neck.