Hydrogen is the smallest diatomic gas molecule known in nature. It is a flammable, colorless and odorless gas and has antioxidant effects. The US FDA recognizes hydrogen as a safe food additive. my country's hydrogen gas has also officially promulgated national standards as a food additive and has been used for food preservation purposes. Hydrogen can be slightly soluble in water. After a large number of experiments, it has been proved that hydrogen is safe when added to water in airtight packaging, and can be made into a new category of drinking water. This standard proposes health water made by adding food additive hydrogen on the basis of complying with GB19298-2014 "National Food Safety Standard for Packaged Drinking Water".