The care of one-month-old babies includes adjusting the indoor environment, paying attention to skin care, and reasonable feeding. 1. Adjust the indoor environment: parents should adjust the indoor environment, the temperature and humidity should be moderate, do not have too much noise, often open the windows to maintain indoor air circulation. 2. Pay attention to skin care: should strengthen the baby’s skin care, change clothes, try to use cotton clothing, and to change diapers to prevent eczema or diaper rash. 3. Reasonable feeding: one-month-old babies try to breastfeed, if breast milk is insufficient, can be given with formula feeding, and to observe the baby’s bowel movements, and every day to go out in the sun, to promote the body’s calcium absorption, to prevent calcium deficiency. Parents found that the baby appeared fever, sneezing or vomiting diarrhea and other symptoms, should take the baby to the doctor as soon as possible for examination and treatment.