The commercialization from the lithium niobate on insulator gives beginning for the emergence of large-high quality lithium niobate photonic crystals. In order to deliver direction into the investigate of lithium niobate photonic crystal units, recent progress about fabrication, characterization, and apps of the thin-movie lithium niobate photonic crystal is reviewed. https://josuekjihe.blogunok.com/32738225/a-review-of-lithium-niobate-crystal