To detect the performance of the fuze auto inductive setter, the talkback channel of fuze auto inductive setter based on assistant coil was presented in this paper. The channel includes an assistant coil and a talkback circuit, which simulates the inductive setting circuit of the fuze. Because the channel is in the fuze setter, so the setter is a closed-loop system. The principle and the basic applied circuit of the talkback channel were described based on analyzing the feasibility of the design scheme. The experiment results show that the talkback channel is not only able to satisfy the demand which the performance of the setter can be detected timely by the weapons system, but also has the advantages of easy talkback circuit realization, reliable information talkback, and simplified fuze circuit.