This paper investigates the crashworthiness of aluminum/CFRP hybrid members subjected to axial loads as changing CFRP stacking condition. Aluminum members absorb energy by stable plastic deformation, while CFRP members absorb energy by unstable brittle failure with higher specific strength and stiffness than those in the aluminum member.In an attempt to achieve a synergy effect by combing the two members, aluminum/CFRP hybrid members were manufactured and collapse tests were performed for the members. The stacking condition related to the energy absorption of composite materials is being considered as an issue for the structural efficiency. Therefore, the collapse tests were performed with change of the stacking condition. Test results showed that the collapse of the aluminum/CFRP hybrid member complemented unstable brittle failure of the CFRP member due to ductile nature of the inner aluminum member and the stacking condition of aluminum/CFRP hybrid members influence energy absorption capability and collapse mode.