The invention discloses an indoor locating method based on a MEMS (Micro-Electro-Mechanical System) and an UWB (Ultra Wide Band). The method disclosed by the invention comprises the following steps: acquiring continuous UWB data to obtain the moving track of a mobile terminal; then determining the motion state of the mobile terminal according to the oscillation rule of an acceleration value measured by a MEMS measuring module on the mobile terminal; and then correcting the moving track of the mobile terminal based on the determined motion state to obtain the current true position of the mobileterminal, so that the correct moving track of the mobile terminal in an indoor environment can be obtained. Through adoption of the method provided by the invention, the jittering of the mobile terminal can be reduced, and the locating and moving track accuracy of the indoor mobile terminal can be improved remarkably.