Objective The co-word analysis was applied to analyze Chinese literatures on nutrition of premature infants after discharge published over the recent decade,aiming to explore the research status and progress of the field and provide a foundation for further studies. Methods Literatures on the Chinese National Knowledge Integrated Database were searched by using "premature infant","nutrition" or "feeding"," discharge" as subject headings,and those fitting in the criteria were included into the study.Keywords statistics and analysis were conducted by using Bicomb2,and a co-occurrence analysis diagram was drawn by using Ucinet 6.0 and Netdraw to visualize the co-occurrence between frequently occurred keywords. Results A total of 72 literatures were included and 20 high-frequency keywords were extracted for co-word analysis,revealing the correlations between the keywords.The results showed that studies on nutrition of premature infants after discharge in China focused on the growth and development of the low-birth-weight and small for gestational age infants.In the ways of nutritional support,the breastfeeding and post discharge formula were the most popular.However,the fortified nutrition time,the method and attention of adding the assisted food,the long-term influence due to growth defect,and the nutrition management method after discharge need further studies. Conclusions At present the domestic studies about the nutrition of premature infants after discharge are relatively less in general,and in which the nutritional support object and method are relatively more.In the future,we need further studies on the fortified nutrition,adding the assisted food,the long-term influence due to growth defect,the nutrition management method after discharge and so on