Ota was born in Hamamatsu on June 11, 1983. He joined J1 League club Júbilo Iwata for their youth team in 2002. He became a regular player as right side midfielder in 2005. However his opportunity to play decreased behind new player Yuichi Komano from 2008. In July 2009, Ota left the club aims to transfer to Europe. However he could not transfer to Europe. After half year blank, he joined Vegalta Sendai in 2010. Although he could not play many matches in 2010, he played many matches as forward in 2011. In 2012, he became a regular player as right side midfielder and Vegalta finished at the 2nd place which is best results in the club history. He played all 34 matches for 3 years in a row (2012-2014). In 2015, he re-joined Júbilo Iwata for the first time in 6 years. Although Júbilo was relegated to J2 League from 2014, he played many matches and Júbilo was promoted to J1 end of the 2015 season. However his opportunity to play decreased from 2017 season. He retired end of the 2019 season.