The 4th Int'l Conference on Advanced Functional Materials (CAFM 2023) will be held from August 11-13, 2023 in Xiamen, China. This Conference will cover issues on Applications of functional materials, Functional materials, Luminescent and Radiation Sensing Materials, Physics of functional materials, Smart materials, Smart Structures and Materials. It dedicates to creating a stage for exchanging the latest research results and sharing the advanced research methods. CAFM 2023 will be an important and reliable platform for inspiring international and interdisciplinary exchange at the forefront of advanced functional materials. The Conference will bring together academicians, engineers, educators and policy-makers from all over the world, and we hope that you will take this opportunity to join us for academic exchange and visit the city of Xiamen.