Tianjin is the birthplace of the Chinese sports. This article researches on Tianjin’s contribution to the development of domestic modern school sports from the following respects, the origin and effect of western sport , competitive sports, sports activists, all kinds of sports and sports organizations. The conclusion of it is that in the background of westernization movement and the church school in Tianjin not only gives birth to the modern western school sports but also cultivates many excellent sports activists and athletes; and through the launch of propaganda and sports meeting in Tianjin school sports spreads throughout the whole China.