Volume grating waveguide as a solution to realize augmented reality display, its core is the fabrication of volume grating. This work proposes a simple, easy-to-build asymmetric exposure optical path with a diffraction efficiency of up to 80% for the fabricated slanted volume grating. A 632.8 nm He-Ne laser was used to monitor the evolution of the grating. The results showed that the grating reaction was completed within 25 s, forming the resulting grating. The SEM image proves the tilt characteristics of the grating and is consistent with the theoretical calculation results. The diffraction efficiency detuning curve of the fabricated slanted volume grating shows a good agreement with the coupled wave theory, and its FWHM is 3.22°. The slanted volume grating can be switched by an external electric field. The 90% and 10% switching field strengths are 5.1 V/μm and 11.25 V/μm, respectively. This work provides positive guidance and reference for the fabrication of slanted liquid crystal/polymer volume gratings.