Miyazaki was born in Iga on October 13, 1983. when she was a Ueno Commercial High School and Tenri University student, she played for her local club Iga FC Kunoichi from 1999 to 2005. she was selected Best Eleven in 2002 season. After graduating from Tenri University, she joined TEPCO Mareeze in 2006. She left the club in 2009. In 2013, she came back at Okayama Yunogo Belle.