Information　sensing　is　the　basic　function　of　Internet　of　Things　(IoT),　by　which　＇Completely　Sensing＇　is　implemented.　Information　interaction　is　the　goal　of　＇Thing-to-Thing　Interconnection＇　which　supports　the　service　and　application　of　IoT.　Along　with　the　upsurge　of　IoT　research　and　application,　there　are　much　research　rapidly　focus　on　the　sensing　network　which　is　mainly　based　on　the　wireless　sensor　network.　As　information　sensing　and　interaction　have　been　deeply　studied　recently,　it　is　necessary　to　summarize　the　latest　progression.　Firstly,　the　main　information　sensing　methods,　such　as　data　collection,　cleaning,　compression,　aggregation　and　fusion,　are　reviewed.　Secondly,　a　basic　information　interaction　model　is　proposed　and　the　main　information　interaction　techniques　are　discussed　in　detail.　Thirdly,　some　active　topics　about　information　sensing　and　interaction,　such　as　new　sensing　techniques,　energy　efficiency,　security　and　mobile　sensing　network,　are　addressed.　Finally,　we　present　the　challenges　for　the　research　of　both　information　sensing　and　interaction,　and　point　out　the　future　work　in　this　area.