Developed cities worldwide are facing the issue of building aging.Professional surveyors encounter signifi-cant potential risks during safety inspections and repairs.However,drone technology has changed this situation.Drone exterior wall inspections reduce the risks associated with working at heights,enhance efficiency,and provide high-reso-lution data.Compared to manual inspections,drones reduce costs.This study focused on the application of drone infra-red thermal imaging technology in the detection of building exterior walls.The aim was to reduce risks and costs,im-prove efficiency,and provide a safe,efficient,and economical solution to the problem of building aging.