Straw and corn cob, taken as additional materials, were added into cattle manure to obtain mixture substrates of straw-cattle manure and corn cob-cattle manure, respectively. The mass percent for the main material of cattle manure was all set at 80% for two kinds of mixtures. And then the mixtures were aerobic composted to generate raw materials for compressing molding experiments. During the experiments, adding content of soil, moisture content of raw matters, and operating pressure and temperature were addressed. Experimental results indicated that adding soil into the mixture substrates could slightly increase the mechanical strength of the mixtures; the mechanical strength of the mixtures without adding soil was also very well, which was capable for planting operations. Moreover, regarding to the effect of the additional materials on the quality of the compressed substrates, the mechanical strengths for the two kinds of additional materials were almost equal. The density of the compressed substrate added straws was larger than that of the substrate added corn cobs, but the ability of absorbing and keeping water of the former was better than that of the latter. The suitable operating ranges for the moisture content of raw matters, and the pressure and temperature should be maintained at 10%~15%, 10~15kN and 80~120℃, respectively.