Abstract: 【Objective/Meaning】The urban sustainable development is faced with such problems as environmental pollution and resource shortage.The comprehensive evaluation of urban ecological carrying capacity is conducive to promoting the sustainable development.So,the study of Wuhu's ecological carrying capacity can provide data reference and countermeasures for its sustainable development.【Methods/Procedures】Taking Wuhu City as the research object,the PSR model was used to construct an evaluation system of ecological carrying capacity with 26 indicators in three subsystems of elastic force,supporting force and pressure.The entropy method was used to make the comprehensive evaluation and the obstacle factor was revealed by the obstacle degree model.【Results/Conclusions】The results showed that the ecological carrying capacity index of Wuhu City from 2008 to 2017 showed an increasing trend,with the level of carrying capacity rising from low to high.Among them,the subsystem of elastic force fluctuated greatly,and the level of elastic force fluctuated between high,low and medium stability.The subsystem of supporting force underwent the evolution process from low support to middle support to higher support to high support.The subsystem of pressure experienced the evolution process of higher pressure,medium pressure,lower pressure and low pressure.According to the analysis of obstacle degree,the 7 indicators including the proportion of tertiary industry,per capita water resources and the intensity of environmental protection input were the main factors restricting the ecological carrying capacity.And then the corresponding countermeasures were put forward.