A novel CMC-Na/CS sponge absorbent pad with the addition of MMT was prepared for fresh under stirring. Then, the mixtures were freeze-dried and crosslinked using CaCl2 to obtain the sponge pads. The swelling ratio and soluble content of the sponge pads in water were tested to determine the optimal ratio of MMT, followed by performing moisture adsorption rate measurement, FTIR, SEM, chromatism analysis and compressive strength test on the resultant sponge pad. The optimal addition ratio of MMT was 5%, which gave the highest swelling ratio and relatively low soluble content to the sponge pad, compared with other samples. CMC-Na/CS sponge pad containing 5% MMT (CMC-Na/CS/MMT-5) showed faster moisture adsorption compared to the blank pad (CMC-Na/CS). The compressive strength of CMC-Na/CS/MMT-5 was also higher than that of CMC-Na/CS due to the excellent strength of MMT and the good interfacial adhesion between MMT and polymer matrix. Although the color of the sponge pad was slightly deepened with the addition of MMT, it was hardly visible to naked eyes. Addition of 5% MMT improved the properties of CMC-Na/CS sponge pads, thus accelerating their practical applications in fresh meat packaging.