A terminal positioning method, wherein the method comprises: obtaining, by a network device, radio signal sampling information of a first terminal at a current moment, wherein the first terminal is any terminal in a target region, and the target region is a preset geographic region; and obtaining, by the network device, position information of the first terminal at the current moment by means of prediction based on the radio signal sampling information of the first terminal at the current moment and a predictive model of the target region, wherein: the predictive model is determined based on a plurality of data pairs of at least two historical terminals in the target region; the plurality of data pairs of any historical terminal of the at least two historical terminals are obtained based on the radio signal sampling information of the historical terminal at a plurality of first historical moments and position information of the historical terminal at a plurality of second historical moments, the radio signal sampling information of the historical terminal at the plurality of first historical moments is obtained based on a first sampling frequency, the position information of the historical terminal at the plurality of second historical moments is obtained based on a second sampling frequency, and the second sampling frequency is less than the first sampling frequency; each data pair of the plurality of data pairs comprises one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments and position information, and the position information in each data pair is corresponding to one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments. obtaining, by a network device, radio signal sampling information of a first terminal at a current moment, wherein the first terminal is any terminal in a target region, and the target region is a preset geographic region; and obtaining, by the network device, position information of the first terminal at the current moment by means of prediction based on the radio signal sampling information of the first terminal at the current moment and a predictive model of the target region, wherein: the predictive model is determined based on a plurality of data pairs of at least two historical terminals in the target region; the plurality of data pairs of any historical terminal of the at least two historical terminals are obtained based on the radio signal sampling information of the historical terminal at a plurality of first historical moments and position information of the historical terminal at a plurality of second historical moments, the radio signal sampling information of the historical terminal at the plurality of first historical moments is obtained based on a first sampling frequency, the position information of the historical terminal at the plurality of second historical moments is obtained based on a second sampling frequency, and the second sampling frequency is less than the first sampling frequency; each data pair of the plurality of data pairs comprises one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments and position information, and the position information in each data pair is corresponding to one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments. the predictive model is determined based on a plurality of data pairs of at least two historical terminals in the target region; the plurality of data pairs of any historical terminal of the at least two historical terminals are obtained based on the radio signal sampling information of the historical terminal at a plurality of first historical moments and position information of the historical terminal at a plurality of second historical moments, the radio signal sampling information of the historical terminal at the plurality of first historical moments is obtained based on a first sampling frequency, the position information of the historical terminal at the plurality of second historical moments is obtained based on a second sampling frequency, and the second sampling frequency is less than the first sampling frequency; each data pair of the plurality of data pairs comprises one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments and position information, and the position information in each data pair is corresponding to one piece of radio signal sampling information of the radio signal sampling information of the historical terminal at the plurality of first historical moments.