In Korea, many korean hold a birthday party for on year old baby. Korean called that party ‘Dol Jan Chi’. This party need to many preparation. First, Baby’s parents ready provide for meal with variety foods. This meal is offered to invited guest. As a whole, invited guest is kith and kin. So, parents get everything in readiness. Second, they prepare baby’s dress. Somebody dress Korean clothes or somebody dress suit. Third, specially in Korea, they ready ‘Dol Jab Gi’ for their baby. This is a kind of performance that let the infant grab various things such as a piece of stone, paper etc and make us presume what kinda person he or she will be by judgin what the baby’ve got. This is one of the most interesting playing in korea. Also, kith and kin gather ready ‘Gold ring’ for hero baby. Besides, ‘Dol jan chi’ need to another many preparation, time, money and so on.