Fecha de publicación: 02/07/2021 Fuente: Wipo "IOT" The invention provides a positioning method of an NB-IoT terminal, which solves the problem of low positioning precision of the NB-IoT terminal in the prior art, and comprises the following steps: establishing an NB-IoT terminal positioning system; enabling an NB-IoT application end to send a positioning request to the NB-IoT positioning server; enabling the NB-IoT positioning server to interact positioning data and positioning configuration information with the NB-IoT terminal and NB-IoT base stations respectively, estimating coordinates of the NB-IoT terminal, confirming whether a propagation path between each NB-IoT base station and the NB-IoT terminal participating in positioning is a line-of-sight propagation path or a non-line-of-sight propagation path, and selecting the most suitable reference base station; and finally, calculating the final coordinate of the NB-IoT terminal according to the plane coordinate of the reference base station and the estimated coordinate of the NB-IoT terminal. According to the invention, under the existing configuration of the NB-IoT, the positioning precision of the NB-IoT terminal is greatly improved.