This research was conducted with the aim of collecting baseline data of the Japanese version of SDLRS for medical students and developing an index to measure the self-directed learning ability of Japanese medical students. Methods: We conducted a self-administered questionnaire survey using the Japanese version of SDLRS for 678 students from the 1st to 6th grades of the Department of Medicine, Shimane University School of Medicine. Results: Responses were obtained from 452 respondents, and descriptive statistics and factor analysis of the Japanese version of SDLRS were performed from 450 respondents. The average score was 200.7（SD: 26.5）. From the Japanese version of SDLRS factor analysis, we extracted 43 questions from 5 factors. Discussion: A total of 43 items in five factors were considered to be components of self-directed learning readiness in Japanese medical students. We have named this the Japanese version of SDLRS-Me, and we look forward to its future utilization.

背景：医学生の日本語版SDLRSベースラインデータ収集と、日本の医学生の自己主導 型学習能力を測る指標開発を行う事を目的とし研究を実施した。
方法：島根大学医学部医学科１年～６年の学生678 名を対象とし、日本語版SDLRSを用いた自 記式質問紙票調査を実施した。
結果：450 名の回答より日本語版SDLRSの記述統計と因子分析を行った。得点平均値は200.7 （SD:26.5）であった。日本語版SDLRS因子分析より５因子43 項目の質問を抽出した。
考察：５因子43 項目が日本の医学生における自己主導型学習準備性の構成因子と考えられた。 これを日本語版SDLRS-Meと名付け、今後の活用が待たれる。