Abstract: In recent years, the frequent occurrence of earthquake disasters has caused heavy human and financial losses, and some small mountainous cities have lagging behind in disaster prevention capabilities, which can no longer meet the actual needs of earthquake disaster prevention. It is difficult and time-consuming to collect basic data of disaster-bearing bodies in mountainous cities. UAV imaging technology is introduced to quickly obtain data on urban buildings, roads, and disaster prevention spaces and ArcGIS statistical analysis functions are combined with related mathematical models to determine the seismic resistance and shock resistance of buildings. The smoothness of evacuation passages and the rationality of the layout of earthquake-resistant evacuation sites are evaluated, and Yongping, an earthquake-resistant fortified area of degree VII, is selected as a case study. Studies have shown that the overall seismic performance of buildings in Yongping City is average, and the areas with weak seismic resistance are mainly old urban areas such as Laojie and Longpan communities. The smoothness of the seismic evacuation channels is generally good, but Yongyun Highway and Yongfu Road do not meet the requirements for seismic evacuation. Earthquake shelter and evacuation sites meet the population's need for disaster shelter, and their distribution is relatively even, and there is a large service gap in the middle of the city. Based on this, corresponding earthquake and disaster prevention planning strategies are proposed for the weak links in the evaluation.