The Li Yiwen Group of Sichuan University was established in March 2016. It relies on the School of Polymer Science and Engineering of Sichuan University and the State Key Laboratory of Polymer Materials Engineering to study the chemical direction of polyphenol materials, mainly involving artificial melanin materials and polyphenol-containing materials. Yuan’s functional materials, such as construction and synthesis, physical property analysis and material processing, have achieved a number of distinctive scientific research results with independent intellectual property rights. More than 70 papers have been published in mainstream journals of chemical and materials sciences such as J. Am. Chem. Soc., Angew. Chem. Int. Ed., with more than 3,000 references, from the Central Organization Department, the Fund Committee, There are dozens of scientific research projects and a number of enterprise horizontal projects in Sichuan Province, and several featured research results are undergoing industrialization promotion and commercialization research.