[Purpose] The analysis of aviation meteorological conditions is an essential prerequisite for the feasibility study of airport engineering construction. [Methods] Based on the meteorological regulations and requirements related to civil aviation airport site selection, and combined with actual needs, taking the relocation of Pu"er Simao Airport as an example, the meteorological observation data of the Longlongba site from 2011 to 2023 was utilized to analyze key meteorological elements such as wind (direction, speed), visibility, cloud (amount, type, height), thunderstorms, hail, temperature, and precipitation from various time perspectives such as annual, seasonal, monthly, and daily variations. The favorable and unfavorable meteorological conditions of the Longlongba site were discussed. [Results] The study found that the Longlongba site is more favorable for airport construction in terms of wind, cloud, visibility, fog, hail, and temperature, less favorable in terms of thunderstorms, and has both favorable and unfavorable conditions in terms of precipitation, but various measures can be taken to reduce the impact of unfavorable meteorological conditions. [Conclusion] Overall, the favorable meteorological conditions for constructing an airport at the Longlongba site significantly outweigh the unfavorable conditions.