Abstract: Four new types of metal phthalocyanine compounds were prepared. By mingling the compounds with the PMMA, composite materials and Iilm coating materials of metal phthalocyanine/ PMMA were prepared. The compounds were characterized in the UV-V IS spectra and the reverse saturable absorption measurements of the composite materials were performed. It is found that the compounds have good performance of reverse saturable absorption and good linear transmittance. The measured max transmittance of the composite film coating materials of B/PMMA is more than 70%，its initial threshold is 127.1 mj/cm2 and dynamic range is 1.43. All these characters show it is an excellent reverse saturable absorption material. This research has led to be helpful in preparing new anti-laser materials applicable to multiple wavelength, high optical density and having high transmittance.

Key words: composite material , reverse saturable absorption , optical limiting , laser protection , metal phthalo?cyanine