This study aims to examine how consumers give value for eggs with the different types of food period and to analyze the consumers’ perception on egg markings after a new policy mandating the inscription of the egg-laying date on eggshells was implemented. For this, we surveyed among 326 consumers who had purchased eggs within two months. The survey questions were mainly about the consumers’ egg consumption patterns and the perception on the eggs with the different label of food period. Only 6.7% of respondants perfectly know about the 10-digit eggshell codes. When the sell-by date is indicated on the egg package, the expected period of egg purchase got longer than other cases, while there was no statistical difference on the expected period of egg ingestion. Consumers differently gave the value of the eggs by the label of dates and, when the sell-by date is only indicated on the egg package the social benefits could be maximized. As the results showed that the degree of understanding egg markings is significantly low, it is necessary to promote the egg markings and handling instructions in order to enhance the effectiveness of the policy.