Abstract:After the flood of Taihu Lake Basin in 1991 and 1993,a heavy Hood has touched down the southeast of Taihu Lake Basin in 1995.The highest water level of Taihu Station reaches 4.32m, the sixth since 1949, due to heavy rainfall in the Zhexi, Hangjiahu, Dianmao, Shanghai Pudong and Puxi of the southeast of Taihu Lake Basin.Some water levels of the above-mentioned areas were even higher than those in the years of 1991 and 1993.The water level in Deqing, Hangjiahu was 6.43m, exceeding the highest recorded Ieve(6.40m).The water level of Jiaxing was 4.40m, surpassing the highest level recorded (4.38m).The water level of Wangjiangjing was 4.38m, also surpavssing 4.26m, the highest level recorded.The situations of the rainfall, flood and damages caused by flood in the southeast of Taihu Lake Basin, 1995 are presented in detail.From the viewpoint of the basing region and cofferdam, the causes of flood disaster in 1995 and the functions of water conservancy projects in the process of flood prevention and mitigation are comprehensively analysed.It is further noticed that the basin control must be harmonized and the ten key projects of Taihu Lake Basin are a united system.