COFs-based catalyst carrier is a new crystalline porous organic polymer material with adjustable structure and function. Its periodic porosity and stability provide a good environment for the catalyst. After modification, functional groups can be introduced to expand the application range. The composite with other active components can enhance the catalytic performance. In the field of photocatalysis, COFs based catalyst carrier has great potential for application. With the deepening of research, COFs-based catalyst carrier will play an important role in the field of catalysis.