Corrugated boxes for frozen foods were very easy to collapse in cold rooms. According to this phenomenon, the reason of collapse was analyzed. The method of improving corrugated box's compressive strength was studied from the view point of corrugated box structure design. Experimental results showed that when paper matching according to 1.25 times edgewise compression strength, the compressive strength of corrugated box can meet requirements of storage and transportation. Moreover, replacing sleeve style box to 02 style box can obviously increase box's compressive strength.