The invention provides bifidobacterium longum YH295 and an application thereof in preparation of a product for reducing the abdominal obesity risk and relates to the technical field of application ofprobiotics. The biological collection number of the bifidobacterium longum YH295 is CGMCC No.14093. In an embodiment, the bifidobacterium longum YH295 can significantly increase the number of lactobacillus and bifidobacterium in intestinal tracts, significantly up-regulating expression quantity of intestinal regeneration genes and content of intestinal transmembrane binding protein, reduce plasmaendotoxin and intestinal inflammation factors and the like so as to reduce abdominal obesity and non-alcoholic fatty liver disease risks and can be applied to preparation of food, supplements or drugsfor preventing and curing metabolic syndromes.