To comprehensively and meticulously evaluate waterlogging control capacity in Changning District of Shanghai, a refined hydrodynamic model of Suzhou River network was constructed based on detailed basic data. The model was calibrated and verified. The model was used to simulate and analyze the characteristic value of average highest water level and the highest water level of main channels in Changning District under the current and planned conditions, respectively. The results indicate that under the current condition, the waterlogging control capacity of Changning District is up to 10-20 years return period standard; and under the planned condition, the waterlogging control capacity is up to 20 years return period standard, but it still fails to meet the 30-year return period standard required by Standard for Waterlogging Control of Shanghai. After further analysis and calculation, it is suggested to add 0. 504 km² of temporary flood detention areas to make the waterlogging control capacity of Changning District meet the 30 years return period standard.