The utility model discloses an electrolytic aluminum liquid edulcoration device, the device is including going out aluminium vacuum package (11), concise agent storage tank (12b) and gas cylinder (12a), play aluminium vacuum package (11) top is equipped with concise agent and enters the mouth refinement agent admission pipe (11b) is installed to concise agent entrance, should concise agent admission pipe (11b) deepening go out the bottom of aluminium vacuum package (11), concise agent storage tank (12b) is connected to through the gas -supply pipe concise agent entry. The utility model discloses the time slot that utilizes aluminium liquid vacuum package to be transported to the casting station by electrolysis portion utilizes metallic sodium, hydrogen and oxidation in the concise desorption aluminium liquid of active complex compound among the high temperature electrolytic aluminum liquid to mix with, has improved electrolytic aluminum liquid's purification efficiency, has reduced the material consumption of concise in -process, has simplified the electrolytic aluminum liquid subsequent processing flow, is showing reduce cost, improves production efficiency, has very high economic value and social.