Photopolymers are an attractive holographic material candidate for high-density data storage, optical filters, and display applications. Photopolymers gained great attention as a promising candidate materials for the holograms due to their relatively large refractive index modulation (Δn=10-2), high sensitivity, and low cost.However, most research works related to photopolymers are focusing on the holographic devices utilizing holographic materials, and thus the investigations on the materials itself for high-performance photopolymer, which guarantees the performance of holographic devices, cannot gained much attentions as much. In the present work, we investigated the relationship between polymer-polymer miscibility and optical properties of photopolymer in detail using thermal analysis, scanning electron microscope and optical property measurement.