The harnessing of Taihu Lake Basin started from 700B. C. In the historical time, people around the lake got used to more demand with less payment. The Ten Water Conservancy Projects, which were initiated in 1987, have obtained conspicuous achievements in the past yearvS. After a long-time delibration, the author reflects that some further researches and works are still needed to make the most of the Projects even after putting the Ten Water Conservancy Projects into operation. The research should go on a step further, in order to solve the problems arised in the process of the project implementation. In the long run. at least five aspects should be noted in future researches:the territorial planning on a basin scale, long-term water resources strategies, water environment control on a basin scale, water environment and regional economy, relationship between Taihu Lake and the Changjiang River, and so on.