Mathematic relations between system characteristics, materials characteristicsand read/write condition are established for holographic grating spectral hole-burningtechnology. Optimal parameter space of material characteristics is achieved bAsed oncomputer simulation analysis.The resultS show that holographic grating spectral holeburning technology will greatly decrease the requirements of system characteristicsimposing on material characteristics, which will offer new theoretical guidance for thestudy of hole-burning material.