By analyzing the request of measuring a kind of signals simultaneity, application domain of multichannel measure is presented. The principle of multichannel measurement is introduced, the task that multichannel measure software needed to do is confirmed， and the difficulty and key of multithreading software is analyzed. The designs and realizations of efficient data process based multiproceeds, efficient path control, and multiwindow display are especially described. The result of multichannel measure is introduced, 8 sub channels measurement and multiwindow display are realized. Experimentation demonstrated that the software will suffice the request of channel receiver.