The utility model relates to a broadband sound absorption cell board belongs to the sqouynd absorption lowering noise field. This sound absorption cell board is mainly including sound insulation board cavity, resonance sheet metal or resonance film, perforation or microperforated panel, aluminium fibreboard and casing, and the sound absorption cell board has a lamellar structure, by openly be the aluminium fibreboard in proper order to the back, perforates or the microperforated panel, and resonance sheet metal or resonance film and sound insulation board cavity, casing encapsulate in the front except that the cell board and other peripheries on four sides the back. The utility model discloses sound absorption frequency band width, the especially low -frequency range sound absorption effect of sound absorption cell board improves a lot, simple structure, light in weight, easily processing preparation, the range of application is extensive, can be applied to the noise elimination of locating such as along the line of indoor wall, outdoor sound barrier, railway station platform, railway and fall and make an uproar.