It is currently unquestioned that the America is still playing the world wide dominant role in the realm of microelectronics of national defense, and that of the leader of the strategic thinking of military microelectronics industry development. For a long period of time, the America’s Defense Advanced Research Projects Agency(DARPA)has been planned, successfully organized and realized the most advanced integrated circuits projects. Meanwhile, radio frequency integrated circuits (RFIC) are critical devices which enable systems of communication, radar, electronic war for military applications, and are one of the most important technologies developed with great efforts in DARPA’s projects. By studying the status of DARPA’s projects of RFIC and the prospects for its future developing, the trends of high speed, high frequency, broadband, intelligent of RFICs for future military applications were suggested.