Aoyama was born in Kurashiki on February 22, 1986. After graduating from Sakuyo High School, he joined J1 League club Sanfrecce Hiroshima in 2004. He played many matches as defensive midfielder from 2006. Sanfrecce won the J1 League champions in 2012, 2013 and 2015. He was also selected "J.League MVP" in 2015.