PROBLEM TO BE SOLVED: To provide an antimicrobial material excellent in antibacterial properties and wear resistance.SOLUTION: According to the present invention, the antimicrobial material including a resin substrate layer and a copper-tin alloy thin film is provided. The copper-tin alloy thin film is disposed on the resin substrate layer and contains copper and tin in an atomic ratio of 50:50-95:5. A surface on the copper-tin alloy thin film side of the resin substrate layer has been subjected to roughening treatment. The thickness of the copper-tin alloy thin film is 2-1,500 nm.