Abstract: Comparing 154 examinees found inthe Zhujuan Collection of Qing Dynasty whose ages were different than that recorded in The Curriculum Vitae Collection of Officials in Qing Dynasty，we can make the following conclusions． The mainstream trend in Qing Dynasty was to list your age as younger． The year of birth was usually confirmed in the metropolitan examination，but only a few officials gave their correct age． The gap between official ages and authentic ages was ordinarily three to six years，but seven to ten year differences were common too． The older age in different Zhujuan was normally the most credible.So we should believe the older age when there is no other strong evidence about the official s age．