Corn stover was taken as the object in the research. The material and compression character, the effects of heating temperature, moisture content and pressure on the physical quality and mechanical properties of corn stover were studied respectively. During the study, axial displacement, diametrical peak displacement and peak stress were all used to scale mechanics properties of corn stover. The results showed that when compression pressure of 60～90MPa applied, moisture content of the grind was 8%～12% and heating temperature was at 75～100℃, the produced briquettes was with high-quality which was easy to store and transport.