Abstract: Photocatalysis technology has great potential in solving energy shortage and environmental pollution. How to improve the utilization efficiency and catalytic activity of photocatalytic materials is a key problem that restricts the application of photocatalytic technology. In nature, plants, algae and other organisms have evolved special structures and environmental purification functions that can effectively capture, absorb and utilize sunlight through the cruel competition of natural selection for millions of years. It is expected to break through the technical limitations of traditional photocatalyst synthesis and open up a new way of high efficiency photocatalyst synthesis by using those structures or substances which have special optical properties in nature or can effectively absorb and utilize sunlight. In this paper, we introduced the application of biomimetic materials in the study of photocatalysis from the aspects of morphology replication and regulation, element self-doping, photosensitive materials, sulfide, biological carbon materials and so on. We hope to provide some theoretical reference for the design and preparation of efficient photocatalytic materials.