Abstract: Aiming at the problem of multi-zero ambiguity elimination in quadrature multiplexed binary offset carrier signal tracking, the common new dual-loop tracking method is theoretically analyzed under the analysis of the common methods of ambiguity elimination, and the dual-loop tracking of the binary offset carrier signal is used to track and simulate QMBOC signal, meanwhile it is compared with the sub-carrier joint loop tracking simulation. The simulation results show that the BOC(1,1) dual-loop tracking error approaches 0 under the environment of the carrier-to-noise ratio higher than 24dB·Hz, which is less than tracking error under the joint tracking method, which is achieving better processing results.