Flux coated brazing and soldering material is a type of material-saving and emission-reducing composite material in recent years, reflecting the progress and development trend of brazing and soldering technology, which is highly concerned by welding researchers in the world. This paper mainly reviews the domestic and foreign research reports on the design, preparation technology, and application of flux coated brazing and soldering materials at home and abroad, puts forward the shortcomings of current research, and looks forward to the future research directions mainly focusing on the standards of flux coated brazing and soldering materials, the synergistic reaction mechanism between flux and metals, the alloying of flux coated brazing and soldering materials and the morphology of flux coated brazing and soldering materials in order to provide theoretical guidance and reference information for related research and technological development in the field of welding.