The invention provides a hot-melt-type marking coating. The coating is prepared from, by weight, 80-120 parts of thermoplastic resin, 20-40 parts of a bone material, 5-15 parts of pigments, 3-10 partsof a reflective material, 0.02-0.05 part of a whitening agent, 0.01-0.03 part of a defoaming agent, 2-6 parts of a novel mercaptan curing agent, 1-2 parts of an anti-settling agent, 1-4 parts of Twain and 0.03-0.06 part of a graphene-oxide-modified benzophenone UV anti-ultraviolet agent. The hot-melt-type marking coating prepared by means of the method has the advantages of being short in film forming and curing time and drying time, good in stain resistance, great in dustproof property, excellent in reflection effect, uniform in viscosity and good in anti-shedding performance after long-termstorage, safe, environmentally friendly, long in service life and the like, and has a broad application prospect.