Induction radio,different not only from the wire communication, but also from the wireless communication, will be widely used as a new communication mode in the field of the rail traffic and the military affairs in the future. The basal principle of the induction radio and the characteristics of the induction communication are emphasized. The ways of modulation and demodulation are analyzed. The circuit of the system is also provided. Based on the above analyses, and taking the current status of maglev in our country into account, solutions of communication at current stage is provided and the test results are put forward.