To accurately identify the spatial distribution characteristics of flood resilience and risk and delineate flood management zones, a MIKE FLOOD hydrodynamic-hydraulic coupled model for the downstream of the Dahe Reservoir in the Pan River Basin was constructed. A system performance function was introduced to calculate the flood resilience of each grid cell, and the study on flood resilience and flood risk under extreme floods was conducted. The results show that the system performance function, which comprehensively considers the inundation depth, inundation velocity, and land use type of each grid cell, can more accurately reflect the ability of the basin system to withstand flood disturbances. The flood resilience results evaluated based on this system performance function are more scientific and reasonable. The flood resilience in the study area shows significant spatial heterogeneity, generally presenting a pattern of high in the upstream and low in the downstream, and has a significant correlation with land use types, with the order of correlation being grassland, forest land, cultivated land, road, and construction land. The flood risk in the study area shows a spatial distribution pattern of high on the left bank and low on the right bank. As the frequency of floods decreases, the proportions of high-risk grids and relatively high-risk grids gradually increase, the proportion of medium-risk grid cells first increases and then decreases, and the proportion of low-risk grid cells continuously decreases. Based on the coupled analysis of flood resilience and risk, four typical zones were identified:high resilience-low risk zone (straight river sections with gentle terrain), low resiliencelow risk zone (urbanized areas in the middle and lower reaches), low resilience high risk zone (bendy river sections and confluence sections of tributaries), and high resilience high risk zone (sharp bend sections and sections with contracted cross sections).