This volume contains selected and peer-reviewed papers presented in the 4th International Conference on Functional Materials Science 2018 (ICFMS 2018, Bali, Indonesia, November 13-15, 2018). The scope of this volume is advanced and various functional materials, including functional ceramics, polymers and composites, materials for energy storage and conversion, bio- and food technologies and biomaterials, modeling and computational procedures for the research properties of functional materials, spectroscopy for advanced materials, magnetic and superconducting materials.