A native of Kishima District, Saga and graduate of the University of Tokyo, he joined the Ministry of Finance in 1989 and received an MBA from University of California, Los Angeles in the United States while in the ministry.

Leaving the ministry in 2005, he was elected to the House of Representatives for the first time in the same year.

In June 2007, Ogushi was blamed for attending the funeral of a yakuza member.

Ogushi said that he never met Tsurumaru and was compelled to attend by a political supporter.

[2] In 2017, he ran in the Kibō no Tō leadership election, losing against Yuichiro Tamaki.