Abstract: For the purpose of improving the ability to accommodate more combat units and avoid hostile interference for modern command information systems, a multi-access method using composite spread-spectrum sequence and amendatory Hermite function (AHF) is given in this paper. The proposed method takes advantage of the wonderful cross-correlation and flexible spectral null features to further improve the ability to accommodate more combat units and avoid hostile interference, which can improve the combat ability of systems. The simulation turns out the validity of the proposed method