He started working in Korean History Compilation Committee in 1927.

In April 1960, he became the Minister of Education, but later resigned in August of that year.

[4] Korean historians such as Cho Yun-jae, Son Chin-tae, and Yi In-yong, among other Chindan hakhoe historians followed another direction in their scholarship, which they also labeled "new" - the new nationalist historiography or sin-minjokjuui yoksahak.

[5] This group, specifically, excluded Yi Pyong-do due to his association with the colonial government, particularly the Chosenshi henshukai, which was generally viewed as an instrument used to distort Korean history by suppressing or delegitimizing important texts such as the Samguk yusa.

[5] Yi Pyong-do, himself, addressed the controversy by stressing that he worked for the Chosenshi henshukai to prevent a Japanese distortion of Korean history, a position that echoed the same argument adopted by other historians identified with the Japanese colonial government.