He was appointed to a Jushiinoge (Junior Forth Rank, Lower Grade) in 1016 after he served as an Onmyo no suke (Assistant Director of Onmyoryo, or Bureau of Divination) in 993, and then he received an Imperial appointment letter for tenmon misso (reporting unusual astronomical phenomena to the emperor) on July 19, 1019, after his brother, ABE no Yoshimasa passed away.
同4年頃に陰陽助などを務めた後、長和5年に従四位下に叙され、弟・安倍吉昌死去後の寛仁3年6月9日に天文密奏の宣旨を受けた。