The commercialization of the lithium niobate on insulator offers beginning on the emergence of high-high quality lithium niobate photonic crystals. In order to provide advice to the research of lithium niobate photonic crystal gadgets, latest development about fabrication, characterization, and applications of the thin-film lithium niobate photonic crystal is reviewed. https://lithium-niobate-crystal02356.blogars.com/31470457/new-step-by-step-map-for-lithium-niobate-crystal