Aiming at the position problem of emitter on the ground, put forward a TDOA/AOA combined position algorithm. In this algorithm, one sensor can be placed on one fixed platform on the ground to measure the azimuth and pitch angle between this sensor and the emitter. The other sensor can be placed on one moving platform, and the different TDOA (Time Difference Of Arrival) can be measured at different time, then the LS (Least square) algorithm can be reached to solve the evaluated value of the emitter’s position. The simulation results show that the algorithm can improve the position precision effectively, especially the more TDOA measurements are used, the more position precision is.