At present diffraction efficiency of acrylamide-based photopolymer using polyvinyl alcohol(PVA) as binder is low at high resolution, that is, the photopolymer system has a low resolution. According to mechanism of photopolymerization the main reason is discussed and four novel methods are presented to accelerate monomers movement so as to improve diffraction efficiency. These methods include adding acrylic acid into the photopolymer system, using low polymerization degree of PVA and optimizing the layer thickness and the dry time, which have been experimentally verified. At a given condition system's diffraction efficiency using polymerization degree 341 of PVA is about 60% higher than that using polymerization degree 1750 of PVA, and diffraction efficiency of adding acrylic acid increases about 10%, system using low polymerication degree and adding acrylic acid is almost not crystaled. Both the layer thickness and the dry time have optimal range. Diffraction efficiencies of over 90% at spatial frequency about 2000 lp/mm and over 55% at 3000 lp/mm were obtained. Transmission holograms and plane reflective holograms can be fabricated by authors' material. So this material is promising to holographic display.