To gain high signal processing capability in radar and sonar fields, this paper proposes and realizes com- munication interface among parallel signal processing machines with TIPC. It lists the main features of TIPC compared with other communication protocols. It also analyzes the basic principles of TIPC and its implementation in details. At the same time, it compares the communication performance between TIPC and TCP. At last, it puts forward a new method to enhance communication reliability among parallel signal processing machines based on TIPC.