Abstract: In the future, using mobile station to locate is the trend of the mobile communication. There are many scholars research in this technology and hold up a great amount of location methods. But many of methods only are fit for location of the mobile station which is in the quiescent state. And when the mobile station is in the dislocation state, these methods would occur fair-sized error. This paper holds up a location track arithmetic which bases on Markov chain cooperating to correlation detection range gate and derives the implementation method of the location track arithmetic. Theoretical analysis and simulation result shows that this location track arithmetic could implement location of the mobile station not only in the dislocation state but also in the quiescent state and improve location accuracy.