This　article　focuses　on　the　research　and　implementation　of　an　intelligent　environmentally　IoT　platform　and　intelligently　connects　traditional　environmental　protection　devices　to　the　IoT　Cloud　platform.There　are　different　types　of　environmental　protection　equipment,such　as　PM2.5,　Pm10,　water,　sound　and　gas　monitoring　equipment.In　this　paper　the　environmental　protection　equipments　connect　to　the　IoT　cloud　platform　through　the　smart　gateway,　and　the　communication　mode　of　the　network　include　2G,3G,4G,　Narrowband-IoT.　The　management　platform　supports　intelligent　access　to　devices,　remote　management,　real-time　monitoring　and　data　analysis,　prediction　alarm.　The　vision　of　the　Internet　of　Things　(IoT)　is　a　dynamic　global　network　based　on　standard　and　interoperable　communication　protocols　where　physical　and　virtual　things　have　identities,　physical　attributes,　and　capabilities　and　are　seamlessly　integrated　into　the　existing　internet　infrastructure.　This　paper　descripes　the　intelligent　environment　project　which　is　based　on　Smart　Environmental　Gateway　Management　Platform.　It＇s　function　position　is　to　build　a　smart　environmentally　aware　network　of　omni-directional　interconnections　between　the　environment　and　society　and　to　realize　the　modernization　and　intelligence　of　environmental　monitoring　and　control　The　experimental　results　show　that　the　IoT　platform　is　stable,　scalable,　high　performance.