Epoxy resin has a high refractive index and light transmittance, and its mechanical properties and adhesive properties are quite good, so there are still certain products in the market that are being used. The introduction of silicone functional group modified epoxy resin can improve the high temperature performance and impact resistance of epoxy resin, reduce the shrinkage and thermal expansion of the product, and increase the application range of the product. According to the reaction mechanism, silicone modified epoxy resin can be divided into two methods: physical blending and chemical copolymerization. If purely pure physical blending is used, due to the large difference in solubility coefficients between silicone and epoxy resin, the microphase structure tends to be in a separated state, and the modification effect is not good. Generally, it needs to be improved by adding transition compatible groups. Its compatible performance. S. S. Hou et al. Used a hydrogen-containing polysiloxane and an allyl glycidyl ether to perform a hydrosilylation reaction to prepare an epoxy group-containing polysiloxane, and then blended with a bisphenol A epoxy resin. The experimental results show that the microphase structure of the modified product is better and there is no phase separation.