Prosecutors say Canchola abused two 10-year-olds and a 9-year-old last May near 105th and Avenue F.
Canchola is due in court in two weeks.
A man is charged with sexually assaulting three young children on Chicago's Far South Side. Fifty-six-year-old Jose Canchola was indicted on multiple counts of criminal sexual assault and abuse. He was arrested last month.