A graphene coating contains 5%-30% of aqueous resin, 50%-70% of a graphene dispersion and 10%-30% of a conductive carbon dispersion. Preferably, the graphene coating also contains 0.2%-1% of a wettingdispersant, 0.1%-0.5% of a defoamer, 0.2%-1.0% of a leveling agent, 0.1%-1.0% of a thickener, 0.5%-2% of a solvent and 0-6% of deionized water; preferably, the sum of the components is 100%. The graphene heating coating is a green and environment-friendly water-based coating, and is more environmentally friendly than an existing commercially available oily system. The graphene coating is harmless, environmentally friendly and pollution-free to production workers during coating and use. Little waste water is produced in construction and is easy to treat. The graphene coating is suitable for small-scale production and industrial large-scale production at the same time. The graphene coating has high applicability, can be applied to most polymer films and chemical fiber filaments, and enablescommon polymer materials to have conductive performance. Due to accurate selection of the component materials, graphene and a carbon-based conductive material in the coating, as functional particles,can be fully attached to the polymer surface to form a conductive layer, and the prepared graphene conductive heating material can generate heat quickly, efficiently and uniformly only by switching on a 36V safe voltage. The conductive material prepared with the existing coating technology is stable in resistance value.