Heavy precipitation occurred in Lake Taihu basin during Typhoon Fitow influence period, with maximum three-day precipitation from the 6th to the 8th in October in 2013, especially at the sub-areas of the Hangjiahu, Zhexi, Pudong and Puxi.Influenced by the strong wind, heavy precipitation, high tide and flood, the water level in major hydrological stations and tidal stations rose rapidly and reached to the highest record in history, which restricted draining of the basin and the region severely.Compared with the 1999 catastrophic flood, we calculated the runoff, flood storage and discharge during the typhoon influence period based on model computation and statistical analysis.A flood deployment plan is proposed in this paper, which may provide references for key projects management and flood control plan in the future.