This　paper　takes　the　application　of　high-precision　BeiDou　positioning　system　as　a　starting　point,　and　uses　IoT　wireless　communication　technology　to　build　a　dedicated　network　to　meet　the　demand　for　real-time　data　transmission　between　mobile　devices.　LoRa　technology,　which　has　the　characteristics　of　low　power　consumption　and　long　distance,　is　chosen　as　the　wireless　communication　method,　and　a　wireless　communication　data　transmission　system　based　on　FPGA　and　LoRa　technology　is　proposed.　The　system　comprehensively　considers　the　actual　working　environment,　transmission　distance,　reliability　and　other　issues,　and　designs　a　multi-hop　hybrid　topology　transmission　network　composed　of　multi-level　devices　to　realize　a　long-distance　and　high-stability　transmission　link.　The　experiments　show　that　the　system　has　good　signal　coverage　in　the　network-deprived　areas　and　can　support　the　centimeter-level　positioning　of　BeiDou　satellite　data　for　fixed　solving　and　decoding　requirements.　The　research　improves　the　data　transmission　volume　and　communication　stability　of　LoRa　network　communication　system,　which　reduces　the　communication　cost　of　the　mobile　communication　network　and　improves　the　real-time　performance　of　the　overall　system　at　the　same　time,　and　the　research　has　the　value　of　engineering　practice　with　a　wide　range　of　practical　application　prospects.　©　2024　IEEE.