Resolvers are widely used in various fields of industrial control due to their high precision and high reliability. The demodulation system with a dedicated decoding chip as the core can only achieve one-to-one demodulation, which is not convenient for expansion. In response to the above problems, a multiaxis resolver demodulation system with a field programmable gate array as the core was proposed. The system could be used to demodulate the angle data of eight resolvers at the same time. The closedloop decoding tracking algorithm with the front CORDIC algorithm was adopted to achieve decoding. The demodulation accuracy was high and the speed was fast. It was suitable for measuring the angle of the servo motor in the multi-axis linkage control system. Finally, the feasibility of the system was verified through experiments. It is proved that the decoding accuracy of the multiaxis decoding system is improved by using the algorithm.