ABSTRACTFemtosecond laser three‐dimensional optical storage is an important method to realize high‐density optical storage. Based on femtosecond laser microexplosion optical information storage principle, the information was written and readout with Titanium sapphire femtosecond pulsed laser, the storage experiments were performed in the polymer doped with nano‐silver, 11‐layer optical information storage was achieved, the information point spacing was 2 μm and the information layer spacing 14 μm. The experiments showed that polymeric materials doped with nano‐silver can be used for femtosecond laser three‐dimensional optical storage and this had laid a solid foundation for high density and ultrahigh density optical information storage. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2662–2665, 2015