The article presents contemporary views on classification, diagnostics and surgical treatment of congenital anorectal anomalies. The model of one stage or multi stage repair depending on the kind of defect and the necessity the anal sphincter muscles reconstruction was discussed. It was noticed that the most important independent factor which can have influence on the functional outcome is a normally developed sacral bone. The objective method of evaluation of the sacrum proposed by Schneider Hospital in New York is presented.