The invention relates to the technical field of medical products, in particular to an elastic bandage, comprising an elastic base layer. Each side of the elastic base layer is provided with a polypropylene film layer; the outer side of each polypropylene film layer is provided with an antibacterial layer that is a graphene antibacterial layer; nanosilver is adsorbed in the graphene antibacterial layers; a bamboo fiber woven layer is arranged between each antibacterial layer and the corresponding polypropylene film layer; the elastic base layer, the polypropylene film layers and the antibacterial layers are bonded together via medical-grade hot melt pressure-sensitive glue. The surface of the elastic bandage is provided with a plurality of bumps, so that a larger gap is provided between theelastic bandage and the skin, breathability is better, the risk of secondary contamination is less, chances for bacterial growth are slimmer, and safety of use is better; the elastic base layer is formed of polyurethane spandex yarn and bamboo fiber by warp-weft knitting; elongation at break of the polyurethane spandex yarn reaches 60%, elongation at break of the bamboo fiber reaches 500%, and shrink elasticity of the elastic bandage is greatly improved.