The article reviews the literature devoted to modern methods of treating children with flat-valgus deformity of the feet. The basic concept, etiology, pathogenesis of the disease, methods of conservative and surgical treatment of feet deformities in children are given, conclusions on the topic are presented, special emphasis has been placed on minimally invasive intervention. Currently one of the most popular methods of surgical correction of flat-valgus deformity of the feet in children is subtalar arthroeresis.