Abstract: The concept and development of the high speed data link are introduced. The whole design plan is given based on the real combat model. The system architecture and device composition are given in some details. The modularized design scheme is adopt，which make the equipment universal and miniaturization and light. The technology plan is given based on (Orthogonal Frequency Division Multiplexing，OFDM)，which solve the low elevation and anti-multipath in the high speed transmission application requirement. It is result that the whole design scheme is feasible，which can be used in the future weapon task.

Key words: Data Link, Aircraft Design, Transceiver