Abstract: In order to study the absorption characterisctics of 1-D graphene photonic crystal in the visible band, theoretical analysis and numerical simulation were conducted by using transfer matrix method. The dependance of absorption characterisctics of 1-D graphene on graphene layers, dielectric thickness of defect layers, and electromagnetic mode were obtained. The results show that the absorption with green light of wavelength of about 556nm is enhanced significantly with the increasing of the layers of graphene. The absorption peak will increase with the increasing of dielectric thickness of defect layer. In the TE mode, the angle of incidence has a little effect on the absorption characterisctics of graphene photonic crystal. The results provide the theoretical basis for the study of 1-D graphene photonic crystal absorbers.