The Internet of Things（IoT） is a highly integrated and comprehensive application of the new generation of information technology. It is of great significance to a new round of industrial transformation and green

intelligent and sustainable economic and social development. NB-IoT is the key construction network of the operator at present. Its development prospect and application demand are also expanding constantly. Depth coverage

low power consumption

low cost and mass connection are the important technical features of NB-IoT

which is to promote the development of network and application the important factor. Based on the analysis of the technical characteristics and depth coverage of NBIoT network

this paper studies its planning ideas and verifi es the effectiveness of the NB-IoT network planning and deployment strategy by simulation results and measured data.