During 1937-45, many Chinese cities and countries were destroyed by Japanese invasion. 1944, Tan Kah Kee---the president of the South-east Asia Federation of China---returned to express sympathy and solicitude for homeland’s people. He found the sanitation of Chinese streets and housing during the war was worse than the colony Singapore twenty years ago. Therefore he consulted the experiences of Singapore and wrote down the book---Housing and Sanitation: An Important Proposal for the Reconstruction of China After Post-World War II ---to provide the ideas of city planning, housing reconstruction and sanitation reform. But this book could not attach important to society.This paper will analyze the Tan’s historical project of modernity for Chinese housing and public sanitation. First, I will apply the materials of overseas Chinese’s newsletters during 1930s-40s to point out some issues of environmental sanitation of counties, Fujiang. Moreover, to introduce the Tan’s Housing and Sanitation, and to discuss that how he transplant the urban planning and housing regulation of Singapore to provide the ideas of spatial development and reform in China. Finally, I will make through study for the Tan’s discourse of transplantation and imagination of modernity.