In 1939, the Horyuji hekiga hozon chosaiinkai (Investigative Committee of Conservation Techniques for Mural Paintings of Horyu-ji Temple) was newly established in the Ministry of Education, and the experts in the art, history, and natural science were joined to discuss about strategy for prevention of further deterioration and the conservation of the murals.
1939年（昭和14年）には文部省にあらためて法隆寺壁画保存調査会が設置され、美術や歴史の専門家のほか、自然科学の専門家も参加して壁画の劣化防止と保存の対策が検討された。