KTX Family Card is the loyalty program and membership card of Korail. This card is issued by Korail Networks, subsidiary of Korail.
In the 1980s, the National Railroad Administration started to issue Railroad Membership Cards. This membership card only had a 10-digit membership number on it, this type of card is widely used until 1998. In 1998, quick-ticket machines and a new membership card with a magnetic strip were introduced. Although the quick-ticket machine had many benefits, the machine and new card were not widely used. The current version of KTX Family Card with IC chip (Smart card) was introduced in 2004.