The edge compressive strength and bending strength of corrugated honeycomb composite board and honeycomb paperboard were compared. Using finite element method，the material, material consumption and size of the two kinds of paperboard were strictly controlled, and the structure effect on edgewise compressive strength and bending strength was decoupled from many factors. The numerical models of two paperboards with large sample size were established. The buckling analysis method was used to simulate the edge crush strength of the two kinds of cardboard. At the same time, the bending strength of them was analyzed. The results showed that the edge compressive strength of corrugated honeycomb composite board was about 30% higher than that of honeycomb paperboard. The longitudinal and transverse bending strength of corrugated honeycomb composite board were 75% and 92% higher than that of honeycomb paperboard. The bending strength of the honeycomb paperboard in longitudinal, transverse direction was basically the same.