Alkaline water is drinking water with a pH value greater than 7. Alkaline water is drinking water with a pH value greater than 7 and is weakly alkaline. Generally, ordinary water is neutral, with a pH value of about 7. Alkaline water is not simply the addition of an alkaline substance, but the process of electrolyzing water separates it into acidic water and alkaline water. There are two ways to make alkaline water: electrolysis and ion exchange. The acidity or alkalinity of water makes little difference to human nutrition. The main purpose of drinking water is to replenish water, not other components, so boiled plain water is the best source of drinking water. Water is the source of life, human survival is inseparable from water, water belongs to a kind of inorganic material, in the state of room temperature is a kind of colorless and tasteless liquid, is also an important resource for the survival of all living creatures, from the broad sense, water is a renewable resource, from the narrow sense of water is a non-renewable resource. It is everyone’s responsibility to save water.