To investigate the problem of tracking multiple short range high speed maneuvering targets with multi- static radar system, a tracking algorithm based on parallel processing mechanism is derived. The whole measurement association course was divided into some parallel sub-courses, moreover, an established target's tracking course is separated into two parallel3-D sub-courses which execute iterative filtering processes with synthetic distance-sum and Doppler velocity. Simulation results show that the algorithm can accurately track multiple maneuvering targets in clutter with fast speed. Meanwhile, it has good convergence and stability.