Radioactive waste gas purification COFs resin is a technology that uses covalent organic framework materials to treat radioactive waste gas. COFs have high porosity, high specific surface area and chemical stability, and can effectively adsorb and purify radioactive substances in waste gas. The resin has strong compression performance and low post-treatment cost, and can be reused many times, which has significant economic benefits. At present, the technology has been applied in nuclear facilities and other occasions, showing good purification effect.