Storage lakes play an important role in the urban waterlogging prevention and control. A city is easy to suffer the systematic waterlogging disaster when encountering the multi-field long duration heavy rain if the storage lakes have not enough time to vacate the storage capacity and overflow. To evaluate the resilience level of urban storage lakes when encountering a continuous multi-field heavy rain, combined with the reality of Wuhan City, the evaluation index of the lake water-retreat time is proposed. Taking the three largest river systems in Wuhan as examples, and based on the built hydrodynamic model of lake water system, the water level changes of main lake under the 100 a different ultra-long duration design rainfalls are simulated. The results show that the simulated peak levels of flood water of Tangxun Lake and Dong Lake are both lower than the maximum control water levels during the 1 d design rainfall, but the water retreat takes long time by 9 d and 3 d+6 h respectively. During the water retreat period, there is a greater risk of waterlogging when heavy rainfall occurs again. The study can provide a reference for the formulation of waterlogging drainage standards and the scale design of waterlogging drainage facilities in the river network region of the plain.