simple and explicit characteristic matrix analysis is used to deal with the holographic mirrors (holographic volume gratings). The continuously varying of the refractive index is considered, and according to the property of holographic material, the small wavenumber approximation is utilized and the periodicity of the grating is used. The calculated precision can be improved by increasing the number of sublayer or developing the terms of power up to higher. The method does not be restricted to region of “near Bragg incidence” and is suitable to solve problems of gratings bounded by two different media. Then the reflectivities, the angular selectivities and the wavelength selectivities of several gratings are computed as numeric simulation