The invention provides a reshaping nonlinear optics polymer based on the inorganic network structure and the preparation method relates to an organic and inorganic complex function polymers, and has superior second order nonlinear optics performance, superior heat stability and excellent processability, and includes organic and inorganic complex stroma and hydroxylorganic chromophore, when the invention is prepared, the mixed solution A of the double-linked carbon organosilane and the methyl methacrylate and the initiator are added into a reactor, and are heated, after being reacted by back flow, the mixed solution is put into a container, the copolymer B of the methyl methacrylate and the organic siloxane is obtained. The copolymer B, the inorganic glass precursor, the dehydrated alcoholand tetrahydrofuran are loaded into a reaction bottle, the HCl solution is added, to make the reaction mixture hydrolyze, the organic chromophore is added, after being dissolved, the organic/inorganic collosol containing the organic chromophore is obtained by filtration, the solvent is heated to volatilize, then the reshaping nonlinear optics polymer based inorganic network structure is obtained.