IT IS AN OBJECT OF THE PRESENT INVENTION TO PROVIDE AN APPARATUS WHICH PRODUCES, BY USING BOTTLED WATER AS RAW WATER, WATER HAVING HIGH TASTE SUCH AS WATER HAVING HIGH REDUCING CHARACTER INCLUDING HYDROGEN THAT IS SAID TO HAVE ANTIOXIDANT EFFECT. THE DRINKING ELECTROLYTIC WATER APPARATUS INCLUDES A BOTTLE (1) FOR SUPPLYING RAW WATER, A PUMP (7) WHICH PUMPS THE RAW WATER INTO A FILTER DEVICE (2), AN ELECTROLYTIC DEVICE (3) INCLUDING ELECTROLYTIC MEANS WHICH DECOMPOSES THE FILTERED RAW WATER BY ELECTROLYSIS, A MIXING PATH SELECTION VALVE (4) WHICH MIXES, WITH ELECTROLYTIC TREATED WATER, DRAINAGE WHICH IS DISCHARGED FROM THE FILTER DEVICE, OR WHICH MIXES THE DRAINAGE WITH UNFILTERED RAW WATER, A WATER STORAGE TANK (5) IN WHICH ELECTROLYTIC TREATED WATER IS STORED AND COOLED, AND AN INTAKE VALVE (6) TAKING WATER IN A WATER STORAGE TANK. FIG. 1