At　the　present　stage,　along　with　the　rapid　development　of　modern　informat　ion　technology,　the　communicat　ion　technology　of　the　Internet　of　Things　has　become　one　of　the　important　technical　foundation　for　so　many　vertica　l　industries　in　modern　social　market　to　accomplish　the　innovative　development.　Currently　Ch　ina＇s　communicat　ion　of　the　Internet　of　Things　has　faced　the　two　difficulties　of　shorter　transmission　distance　and　higher　power　consumption,　the　research　made　on　the　communication　technologies　of　the　Internet　of　Things　has　already　attracted　wider　attention　from　all　sectors　of　the　community.　In　this　paper,　it　mainly　studies　the　node　chip　technology　of　low-power　consumption　Wide　Area　Internet　of　Things　based　on　NB-IoT.