Abstract
The purpose of this paper is to analyze and consider the Japanese social worker, Takayuki Namae's (1867-1957), theory of the day nursery project, especially focusing on family reform and slum clearance. His papers and books between 1909-1923 were reviewed by this author. The results reveal that there was of way of thinking about family reform and slum clearance as side jobs of the day nursery. The author considered actual conditions of family reform and slum clearance by day nursery teachers. In conclusion family reform and slum clearance background in the day nursery project of The Reformatory Measures and Moral Direction Relief Policy was training projects for 'good subject' by means of direction of mothers and encouragement of savings and employment agency activities etc.