By use of chitosan, butyryric anhydride, methacryloxypropyl trimethyl-oxysilane(MPTMS), tetraethyloxysilane (TEOS), firstly butyrylchitosan-MPTMS was synthesized by Michael addition reaction, and then went on acid catalysizing sol-gel process, lastly transparent butyrylchitosan/SiO2 hybrid polymer materials were prepared. FTIR was used to characterize the structure. The results of SEM, TGA and Test of Mechanical Properties indicate that the preparation techniques have great effect on surface topography, thermal degradation temperature and mechanical properties of hybrid polymer materials.