A producing method for a living organism-applicable hydrogen-contained fluid,which includes hydrogen molecules in living organism-applicable fluid enclosedin acontainer (2i) with hydrogen molecule permeability, is provided. This methodincludesa hydrogen exposing step of exposing hydrogen molecules to the container (2i)in whichthe living organism-applicable fluid is enclosed from the outside of thecontainerwithout opening the container. The container with hydrogen moleculepermeability isone that allows a dissolved hydrogen concentration of a normal saline solutionto be 1ppb or greater when the container filled with the normal saline solution isimmersed forhours in a volume of hydrogen water, which stably maintains an approximatelysaturated state (1.6 ppm at 20C degrees under 1 barometric pressure) and is 20timesthe content volume of the container.
