This course mainly covers the basic knowledge and recent research progress of material surface and interface, including liquid surface, solid surface, solid-liquid interface, solid-solid interface. The interfaces of typical materials are introduced, including surface of metal material, surface interface of inorganic nonmetallic material, surface interface of polymer material and composite material. In addition, this course will introduce common synthesis methods used in interface design, including molecular self-assembly, physical/chemical vapor deposition, atomic layer deposition, molecular layer deposition, etc. Through this course, students will master the structure and properties of various materials' surfaces and interfaces and their basic research methods, which will provide theoretical and experimental basis for the research of flexible electronics, optoelectronic devices, batteries, catalysis, composite materials, biological materials and other surface and interface related fields.