Thermoplastic reflective road marking paint is a new type of pavement marking paint developed on the basis of the original hot-melt road marking paint by appropriate improvement of coating formulation and construction technology. It is mainly composed of C5 petroleum resin, and various additives, pigments, hot-melt special glass beads, etc. are added to form a powdery solid coating, which is heated from 180 ° C to 220 ° C by a hot melt kettle.