This study compares the effects of aged and new corn on the performance of laying hens to provide insights for their production. The experiment used a single factor test design, and selects 389（55.5 weeks） to 456 days old（65 weeks） layers. The experimental diet used different types of corn as ingredients, divided into three treatment groups., and the control group used new Anshan corn in 2018, test group A（select Fuyu second-class corn in 2015,aged corn A）, test group B（select 2015 Gongzhuling first-class corn, aged corn B）, 6 replicates per treatment group,each 45 chickens were repeated for a total of 810 chickens, with a test period of 68 days, including a pre-feeding period of 12 days and a test period of 56 days. The results showed that no significant difference in egg production rate among the groups using different corn types（P＞0.05）. The ratio of aged corn A was significantly higher than that of the control group（P＜0.05）, and the weight and egg production of the control group were significantly higher Aged corn group（P＜0.05）, and the egg weight of aged corn B is significantly higher than that of aged corn A（P＜0.05）;there is no difference in the weight, egg breaking rate, eggshell color score and fecal score of laying hens significantly（P＞0.05）. Aged corn reduces laying hen body weight, egg weight, egg production rate, and egg production,with first-class aged corn performing better than second-class aged corn. In laying hen diet formulations, it is not recommended to completely replace new corn with first-class aged corn; instead, a certain proportion of new corn should be used.