Abstract: In order to study the damage mechanics and the effects of some factors on the dynamic response of the composite honeycomb sandwich panels under the bird impact, the impact of gelatin bird on the composite honeycomb sandwich panels experiment was conducted. CT scanning technology was used to detect the inside of the composite honeycomb sandwich panel. Delamination, matrix cracking, fiber fracture, dent and buckling occur in panels; crushing and debonding with panel occur in the honeycomb core; The dynamic deformation and displacement-time data of rear panel of composite honeycomb sandwich panels were analyzed. The global bending deformation and local deformation appear in the sandwich panels during the impact; The comparative analysis was carried out, the damage level of the composite honeycomb sandwich panels increases with the increase of the impact speed; the composite honeycomb sandwich panel with a thickness of 10 mm is more severe than the composite honeycomb sandwich panel with a thickness of 5 mm in the damage level; the spherical bird with higher initial kinetic energy causes more damage to the composite honeycomb sandwich panel than the cylindrical bird.