He was the most politically influential among the sons of FUJIWARA no Fuhito, and in 703 when he was still in his early 20s, he carried out the administrative supervision of Tokai-do Road as the first Junsatsushi (circuit inspector) appointed after the Taiho Code was issued.
政治的力量は不比等の息子達の間では随一であり、大宝(日本)（703年）には20代前半にして、大宝律令施行後初めて巡察使となり、東海道の行政監察を行った。