Environment-friendly corrugated board

The invention belongs to the technical field of corrugated board manufacturing, and in particular relates to an environment-friendly corrugated board. The corrugated board comprises two surface paper layers and a core paper layer arranged between the surface paper layers, wherein the core paper layer mainly comprises corrugated cardboards, supporting posts for supporting the two surface paper layers are arranged between the corrugated cardboards, and a buffer layer is laid outside at least one surface paper layer. According to the corrugated board provided by the invention, the supporting posts are filled in the corrugated cardboards so that the corrugated board has pretty good elasticity and compressive strength; and simultaneously, one buffer layer is arranged outside the surface paper layer so that the corrugated board further has better buffer performance, therefore, foamed plastics or other foamed light-weight materials do not need to be filled when a fragile object is packaged so as to reduce plastic po