In order to understand edgewise compression properties of high-strength composite corrugated cardboard, the edgewise compression test for sandwiched structure was applied to the composite corrugated cardboard. High-strength composite corrugated specimens with four kinds of thickness, 10, 15, 20 and 30mm were selected to test in accordance with longitudinal and transverse direction, respectively. The results showed that the edgewise compression test value in the longitudinal direction is greater than that in transverse one for the cardboard with the same thickness; with the thickness increase of composite corrugated cardboard, the edgewise compression strength in longitudinal and transverse directions both tends to decrease. The test results for high-strength composite corrugated cardboard are of significant application in practice, especially for improving stack bearing capacity of pallet container.