Abstract: Singapore keeps on increasing the amount of public R&D input and reforming its input system to adapt to the social and economic development. In recent years Singapore focuses on the balance of department input and overall input, comprehensively supports the innovation, and pays attention to the relationship between public R&D and economy. To achieve these targets, Singapore has made some reforms including setting up new public sectors or converting their functions. The experience of Singapore is of significance for China’s transformation of financial input of S&T from allocation to coordination.