His birth and death dates are unknown, but it is his first appearance in a historical record mentioning that he built a statue of Kisshoten (Laksmi) (not presently existing) in 1152.
康慶の生没年は未詳だが、仁平2年（1152年）に吉祥天像（現存しない）を制作したことが史料上の初見である。