The object of the present invention is to provide an oral cavity composition which is nontoxic, excellent in plaque control, can prevent or treat onset of caries and periodontal disease caused by oral pathogens as well as can prevent or eliminate bad breath. The invention provides an oral cavity composition containing a lactic acid bacterium, Streptococcus faecalis as an active ingredient, the oral cavity composition wherein the lactic acid bacterium, Streptococcus faecalis is Streptococcus faecalis WB2000 strain and the oral cavity composition which is a non-aqueous oral cavity composition.
