A method includes obtaining barometric data collected by the barometer in preset duration and sound intensity data collected by the sound sensor in the preset duration, where the barometric data includes n groups of collection moments and barometric values, the sound intensity data includes n groups of collection moments and sound intensity values, the barometer and the sound sensor perform collection synchronously, and n is an integer greater than 1, determining that the barometric data and the sound intensity data meet a preset condition, and switching a first positioning algorithm to a second positioning algorithm or switching a first positioning technology to a second positioning technology.