The present disclosure relates to user equipment (UE) positioning methods. In one example method, a first base station receives first measurement information, where the first measurement information is obtained by a UE by measuring a signal sent by the first base station. The first base station determines first intermediate information based on the first measurement information and first assistance information that is of the first base station, where the first intermediate information is used to determine position information of the UE. The first base station sends the first intermediate information to a first network device.