The article aims to improve the office efficiency of the meteorological department in Qiannan Prefecture, reduce approval time, and achieve paperless, information-based, and intelligent approval processes. Create an organizational structure for the Qianxinan Prefecture Meteorological Bureau through DingTalk management backend, and under this structure, construct various OA approval forms such as vehicle management, material procurement, contract management, and leave requests at the state and county levels based on the needs of each unit. The results showed that the OA approval system optimized the workflow and saved a lot of approval time; The frequency of using various approval forms is gradually increasing. Therefore, building a DingTalk OA approval system can significantly improve the office efficiency of meteorological departments and is of great significance for their work.