A technique of using optical wavefront-division multiplexer in one-channel real-time hybrid joint transform correlation system to realize four-channel real-time correlation is proposed in this paper. By means of this technique, the one-channel system can be made into a multi-channel system, the system capacity and processing speed can be several times higher of that before, and the system performance can be improved. The design and the working principle of the new system is described. The experimental results are given.