Abstract: The effect of different heating time ( 0, 1, 2, 3, 4, 5 h) on the foaming properties of Ca-namofibrils polymer was investigated in this paper.The results showed that the foaming ability of Ca-namofibrils polymer reached a maximum value of96.00% ± 0.02% at heating 3 h, the foaming ability of Ca-namofibrils polymer was 2.13 times that of Ca-WPC polymer. The foam stability of Ca-WPC polymer after the heat treatment were zero.While the foam stability of Ca-namofibrils polymer was increased and then decreased with the increasing of heating time and reached a maximum value of 62.38% ± 1.51% at heating3 h.So heating a certain time can significantly improve the foaming properties of Ca-namofibrils polymer.