The spectral performances and the photo-stability of the active pigments of chlorophyll are mainly researched. According to the pigment in green plants, the characteristics of chlorophyll and its degradation factors are analyzed, and then chlorophyll derivatives are prepared by replacing Mg2+ in natural chlorophyll with the metal ions of Cu2+ and Zn2+, furthermore their characteristics are analyzed comparatively through the spectral characteristic and photo-stability. Research results show that Cu chlorophyll is more suitable as the target of chlorophyll modifying to improve the stability of the pigments from considering spectral characteristic and photo-stability together. Thus it provides material basis for the preparation of new optical camouflage paint.