Objective: To explore the recovery process and the influence factors of post-partum depression (PPD) .Methods:22 women with PPD and 34 women of non-PPD were investigated with the Edinburgh Postnatal Depression Scale (EPDS) and the Delivery Woman General Situation Questionnaire (DWGSQ) at 18 months and 30 months after childbirth.Results:The EPDS scores of PPD (11.27?3.49 at 18 months;10.91?4.59 at 30 months) were significantly higher than that of non-PPD (7.59?3.83 at 18months;7.47?4.09 at 30 months) (t 1=3.636, P 1