This research describes the synthesis and characterization of the organic –inorganic hybrid materials( (methyl methacrylate) (PMMA) and tetraethyl orthosilicate (TEOS)) film were fabricated using sol-gel technique T 1 =20/80,T 2 =50/50,T 3 =80/20. the ratios of PMMA/TEOS (20\80,50/50,80/20) V/V, .The films were then characterized using FTIR, TGA ,and UV-VIS., the hybrids organic –inorganic film is devised by the assembly between silica xerogel and polymer with C=O group via hydrogen bonding .The best transmission of the ratio PMMA/TEOS is ( 80/20),the thermal gravimetric analysis the stable thermal with increasing PMMA content .