Objectives: Discuss the pathogenic factors of postnatal depression among gravida and puerpera, the specific psychology guidances to postnatal depression, focus on the changes of puerpera’s emotional state, and reducing the occurrence of postnatal depression.Methods:Creating comfortable environment, help puerpera to self-identity their roles of mothers, suitable psychology guidances and constructing good family atmosphere, strengthen the health care during pregnancy.Result: make puerpera more happy and eliminated negative emotions.Conclusion:Through the guidance of psychology, antenatal and postpartum, heath education and discharge instruction, acquired good results so that make the postpartum patients heathy.