Objectives:　The　existed　problems　of　post-disaster　rapid　emergency　response　system　include　the　short　communication　distance　between　nodes　in　conventional　wireless　sensor　networks,　and　the　over-reliance　on　ground　stations　for　front-end　and　back-end　long-distance　communication.Methods:　The　emergency　environment　monitoring　system　based　on　long　range　wireless　transmission　technology　and　BeiDou　navigation　satellite　system　(BDS)　is　designed　and　developed.　The　proposed　system　takes　unmanned　aerial　vehicle　as　bearing　platform　of　emergency　devices,　and　the　collected　environmental　parameters　are　transferred　through　the　relay　nodes　to　the　gateway　nodes　equipped　with　BDS　modules.　Users　can　use　the　hand-held　emergency　terminal　to　acquire　and　receive　the　collected　environmental　monitoring　data　in　real　time.Results:　The　results　show　that　the　proposed　system　can　realize　real-time　data　collection　and　reliable　transmission　in　different　environments　with　the　communication　distance　of　8　km.　The　packet　loss　rates　of　short　message　in　urban　area　and　in　mountainous　area　are　7.450%　and　18.395%,　respectively.Conclusions:　The　proposed　system　has　certain　application　value　for　complete　or　partial　absence　of　conventional　communication　network.　©　2021,　Editorial　Board　of　Geomatics　and　Information　Science　of　Wuhan　University.　All　right　reserved.