Objective To evaluate and summarize the related evidence on improving parents′ coping ability for discharged preterm infants to provide evidence-based basis for clinical intervention. Methods We followed the "6S" pyramid and searched electronic databases to retrieve literature regarding the coping ability for discharged preterm infants, including clinical decision-making, guidelines, evidence summary, expert consensus, systematic review,and randomized controlled study. Quality of included literature was evaluated by two researchers, and the evidence was extracted and summarized. Results Totally 23 articles were included:3 guidelines, 2 clinical decisions reports, 3 position statements, 1 best practice report, 2 expert consensus reports, 8 systematic reviews, and 4 RCTs. Finally，30 pieces of best evidence about discharge planning, pre-discharge education, family and environmental pre-paration, follow-up, home visit, communication and other supports were summarized. Conclusion Evidence summary on improving parents′ coping ability for discharged preterm infants is scientific and of practical value.Medical staff can follow the best evidence to formulate intervention programs for parents of preterm infants to improve their coping ability, so as to improve the parental care capacity of premature infants and promote the health of premature infants.