A 6-month-old baby usually drinks 80 to 100 milliliters of water a day, which needs to be determined on a case-by-case basis. A 6-month-old child drinks about 80 to 100 milliliters of water a day, and this water, given to the child three times a day, is intended to provide the infant with sufficient water to help with metabolism and growth and development. The amount of water in a child’s body is influenced by the child’s daily activities, seasonal temperature, and the amount of milk consumed. Parents should give hydration to their children according to their actual situation. Note: Yellow urine in children indicates a lack of water in the body. It is important to monitor and replenish water to meet the child’s normal daily requirement. 6 months children in the breastfeeding period, because the breast milk has more water, you can properly reduce other water intake, if the milk powder instead of breastfeeding, the amount of water can be greater than 100 ml.