The　global　navigation　satellite　system　(GNSS)　is　widely　used　in　landslide　and　other　geological　hazard　deformation　monitoring.　In　this　paper,　a　landslide　monitoring　system　based　on　two　main　measurement　techniques　based　on　Beidou　and　GPS　is　designed　and　realized.　Combined　with　4G　LTE　technology　and　satellite　positioning　technology,　the　system　collects　the　coordinate　information　of　the　monitoring　points　in　real　time,　sends　them　to　the　remote　monitoring　center　through　4G　network,　and　processes　the　data　by　the　monitoring　center,　and　analyzes　whether　the　monitoring　points　are　landslides.　The　software　design　method　of　the　system　is　introduced　in　detail,　and　the　feasibility　of　the　system　is　verified　by　experiments.　The　test　results　show　that　the　system　stability　is　high,　and　the　measurement　error　is　controlled　at　millimeter　level,　which　can　better　predict　and　predict　landslides.