Today

the era of IoT（Internet of things）has arrived. Narrowband IoTtechnology（NB-IoT） with its technical advantages such as low-power

wide-coverage

becomes one of the hottest IoT communication technologies

which attracts extensive attentions of communication operators. This research beginning from the technical feature of NB-IoT

nextconducts analysis on NB-IoT network deployment schemesin theview of communication operators

which is carried out from three dimensions of the wireless network

the core network and the IoT platform. Then itpresents some typicalapplication scenarios of NB-IoT. Finally

the prospects of NB-IoT application in the future also forecasted.