Single precusor for organic and inorganic hybrid composite was prepared by the reaction of 2-Hydroxyethylacrylate(HEA) or 2-hybroxyethylmetacrylate(HEMA) for the organic Polymer source and SiCl₄ for inorganic polymer source. From the IR specta of the prepared single precursor we found that it had tetrahedral structure like a tetraethylorthosilicate(TEOS). And we also observed the simultaneously interpenetrating polymerization of the single precusors under catalyst formed inorganic and organic hybrid network. The inorganic contents of hybrid composites from HEA and HEMA were 22% and 13% respectively and SEM micrographs of it's surface showed that it had no phase separation between inorganic and organic phase.