PROBLEM TO BE SOLVED: To provide an industrial antibacterial composition having such strong antibacterial activity for controlling bacteria that any conventional antibacterial agent never gives when it is solely used, and to provide an antibacterial method. SOLUTION: This industrial antibacterial composition contains a first component and a second component, wherein the first component comprises 2-(4- thiocyanomethylthio)benzothiazole and the second component comprises a pyridine-based antibacterial compound comprising, preferably, at least one kind of compound selected from sodium salt of 2-pyridinethiol-1-oxide, zinc salt thereof, copper salt thereof, and 2,3,5,6-tetrachloro-4-(methylsulfonyl)pyridine. The antibacterial method comprises utilizing the components as active ingredients.