Fuente: Wipo "IOT" The invention provides a narrowband Internet of Things (NB-IoT) coverage prediction method and device, and the method comprises the steps: obtaining a measurement report of an NB-IoT cell level and the minimum drive test data of a frequency division duplex (FDD) 900 grid; screening a first grid commonly covered by the NB-IoT cell and the FDD 900 cell according to the minimum drive test data; obtaining attribute information of a building corresponding to the first grid, and matching a target measurement report from the NB-IoT cell-level measurement reports according to the first grid; determining an NB-IoT coverage model according to the attribute information of the building and the target measurement report; and predicting the target NB-IOT based on the NB-IoT coverage model to obtain a coverage prediction value of the target NB-IoT, thereby solving the technical problem of inaccurate prediction of NB-IoT network coverage in the prior art.