Firstly, the difficulties and problems of applying time inversion technique to nearfield power synthesis of moving array are analyzed theoretically, and the feasibility of applying time inversion technique to farfield power synthesis of moving array is also discussed. A mathematical model of farfield power synthesis of moving array based on time inversion technique is established. On the basis of this model, by simulating the beam pointing of the retrospective signal when the beacon signal is incident from different directions, the TR signal radiated by the array can achieve adaptive retrospective and is more concentrated beam energy than that of the synthesized beam formed by the traditional phased array method. The 3dB width of the main lobe beam of the synthesized signal when the unit antenna is set as omnidirectional antenna and directional antenna is obtained by simulation. The possibility that the target point is separated from the coverage of the main lobe beam of the synthesized beam due to the relative tangential motion between the array and the target point is eliminated. The influence of random phase error and beam pointing error on the synthesized beam pointing of backtracking signal is analyzed. The simulation results show that the random phase error has little effect on the synthesized beam pointing of backtracking signal, but has a certain of effect on the synthesized signal. The beam pointing error caused by Doppler shift of signal has little effect on the adaptive backtracking of signal. The conclusions can provide a theoretical basis for the practical application of time inversion technology in far-field power synthesis.