This paper, based on the panel data of 877 districts and counties from 2005 to 2024, takes the reform of the national urbanrural integration development pilot zone as a quasinatural experiment and uses the differentindifferences method to investigate the impact of the reform on the resilience of county economies The results show that the reform significantly enhances the resilience of countylevel economies, and the effect is more prominent in counties with a better digital foundation, a high level of ecommerce and strong innovation capabilities The higher the quality of urbanrural integration, the stronger the enhancing effect The capabilities of resistance and recovery, adaptation and regulation, as well as transformation and development have all been enhanced, with the transformation capability being the most remarkable The reform also has a positive spatial spillover effect, driving the coordinated improvement of neighboring counties