A new-type plant fiber foamed cushion packaging material was developed using cassava residue as raw material by baking method through mixing cassava starch, crosslinking agent, catalytic agent, and foaming agent. The influence of cassava residue particle size and the dosage of adhesive, catalytic agent, and foaming agent on static cushion performance of the material was analyzed. A central composite design was constructed using the software Statistics Analysis System 9.0. The results showed that the optimum dosages of adhesive, foaming agent, and catalyst were 2.0, 6.0, and 2.4 g respectively; foaming temperature is 63~68 ℃; reaction time is 14~17 h.