Depression, also known as low affect, is often characterized by abnormally low mood, depressed state of mind, poor sense of self, loss of interest, feelings of self-blame, self-harm and even suicidal tendencies. Postpartum depression refers to depression that occurs during the puerperium, and is a psychiatric disorder between postpartum psychosis and maternal depression. The risk of psychiatric disorders in the puerperium is more than 20 times higher for women compared to non-pregnant women. Postpartum depression can be a serious risk to a woman’s physical and mental health, and can affect the development and growth of her child due to excessive sensitivity and concern for the health and well-being of her child. Women will experience postpartum depression within three weeks of delivery, often manifested as the following: 1. Mood disorders: mothers are prone to frequent crying, anxiety, low mood, depression, increased sense of self-blame, etc.; 2. Physical symptoms: in terms of sleep, mothers show easy sleepiness, difficulty in falling asleep, dreamy, early awakening, etc.; they also show weight loss, poor appetite, sexual life disorders, and in severe cases, loss of self-care ability, etc.; 3. Social relationship: the relationship with husband and family members is more tense, excessive worry or resistance to the baby, in addition to suicidal thoughts and harm to the baby’s behavior. If the mother and her family find that the mother has relevant depressive manifestations after delivery, they should promptly urge the mother to seek medical attention and receive professional treatment to avoid aggravation of the situation. The patient’s family should also provide full understanding and encouragement and not put pressure on the mother.