This paper focuses on the applications and governance of drones in modern society, highlighting their value in agriculture, disaster response, infrastructure inspection, medical logistics, and ecological monitoring. Drones feature high mobility, rapid information acquisition, and the capability to access high-risk or hard-to-reach areas. However, their large-scale deployment also raises challenges concerning airspace safety, privacy protection, and public trust. The article further analysis regulatory frameworks such as Remote ID, UTM and U-space being promoted by the FAA, ICAO, and EASA. It demonstrates that the future development of drones depends not only on technological progress but also on the coordinated advancement of regulations, supporting infrastructure, and social acceptance.