Keio-gijuku was founded in 1858 by Fukuzawa and is the oldest of the modern private schools in Japan. In the 16th year of Meiji, 1883, Fukuzawa wrote a memorandum of the history of his school and named it 'Keio-gijuku Kiji'. 'Kiji' means a historical private note. Fukuzawa sent his note with some other reports to the educational authority. The present thesis is the historical analysis of Fukuzawa's memorandum and is devided in two parts. The first part aims to explain when and why his note was written and the second to analyse the contents of his note which has three chapters of the personal organization and self-government, the curriculum and course of study, and the school finance and management system.