In　response　to　the　new　demand　for　geographic　information　transmission,　this　article　designs　and　implements　a　geographic　information　data　transmission　system　based　on　satellite　communication,　which　mainly　consists　of　two　parts:　a　data　transmission　module　and　a　satellite　communication　transmission　module.　The　data　transmission　module　can　complete　functions　such　as　data　reception,　data　transmission,　data　forward　processing,　data　reverse　processing,　and　network　transmission.　The　satellite　communication　transmission　module　can　complete　network　security　encryption　transmission,　ensure　network　security　and　achieve　point-to-point　communication.　Key　issues　such　as　data　compression,　data　encryption,　data　watermarking　and　integrity　authentication　have　been　focused　on,　providing　new　means　for　remote　real-time　transmission　of　a　large　amount　of　geographic　information　data　and　a　good　teaching　and　training　platform　for　professional　course　practice.　©　2024　IEEE.