Miyazaki was born in Iga on October 13, 1983. when she was a 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.

After graduating from Tenri University, she joined TEPCO Mareeze in 2006.

On August 5, 2001, when Miyazaki was 17 years old, she debuted for Japan national team against China.

[1] In 2002, she was selected Japan U-20 national team for 2002 U-19 World Championship.

This biographical article related to women's association football in Japan is a stub.