A composite material structure comprising: a first face plate formed of a composite material; a second face plate formed of a composite material and disposed to be opposite to the first face plate; and a corrugated core formed of a composite material and bonded to the first face plate and to the second face plate, wherein the corrugated core has at least one opening and comprises: a first bonding section bonded to the first face plate and configured to extend in a first direction along the first face plate; a second bonding section bonded to the second face plate and configured to extend in the first direction; and a coupling section connected between the first bonding section and the second bonding section and configured to extend in the first direction, wherein the corrugated core is configured such that a first space surrounded by the second bonding section, the coupling section and the first face plate extends in the first direction and a second space surrounded by the first bonding section, the coupling section and the second face plate extends in the first direction, wherein the first space and the second space are alternately arranged in a second direction along the first face plate which is different from the first direction, and wherein the at least one opening is disposed in the coupling section. a first face plate formed of a composite material; a second face plate formed of a composite material and disposed to be opposite to the first face plate; and a corrugated core formed of a composite material and bonded to the first face plate and to the second face plate, wherein the corrugated core has at least one opening and comprises: a first bonding section bonded to the first face plate and configured to extend in a first direction along the first face plate; a second bonding section bonded to the second face plate and configured to extend in the first direction; and a coupling section connected between the first bonding section and the second bonding section and configured to extend in the first direction, wherein the corrugated core is configured such that a first space surrounded by the second bonding section, the coupling section and the first face plate extends in the first direction and a second space surrounded by the first bonding section, the coupling section and the second face plate extends in the first direction, wherein the first space and the second space are alternately arranged in a second direction along the first face plate which is different from the first direction, and wherein the at least one opening is disposed in the coupling section. a first bonding section bonded to the first face plate and configured to extend in a first direction along the first face plate; a second bonding section bonded to the second face plate and configured to extend in the first direction; and a coupling section connected between the first bonding section and the second bonding section and configured to extend in the first direction, wherein the corrugated core is configured such that a first space surrounded by the second bonding section, the coupling section and the first face plate extends in the first direction and a second space surrounded by the first bonding section, the coupling section and the second face plate extends in the first direction, wherein the first space and the second space are alternately arranged in a second direction along the first face plate which is different from the first direction, and wherein the at least one opening is disposed in the coupling section.