This study investigates, through the Ka-rae-ban-cha-do(嘉禮班次圖) in the Ka-rae-do-gameui-gue (嘉禮都監儀軌) , how the system of costume used in ceremony exchanged during the middle, late the Yi dynasty and in the period of introducing Wastern civilization. The procedure of the royal marriage is also studied here. The procedures of Ka-rae were divided into the six traditional etiguettes(六禮) : Nap-che(納采), Nap-gyng(納徵), Go-gi(告期), Chaik-bi(冊妃), Chin-young(親迎), and Dong-roe(同牢). The change of the general structure and characteristic of the costume used in the ceremony in Ka-rae-ban-cha-do are as follows: The costume in Ka-rae-ban-cha-do can be divided into the Guard costume (扈衛服飾) and the Ceremonial arms costume(儀狀服飾). The most formal attire of the Guard costume, Yangkwan-Chobok (梁冠-朝服) and Samo -Damyeong(紗帽-團領) with Huygpai(胸背) can be seem only in the Ka-rae of late king`s. Of the Ceremonial arms costume, the most outstanding was Hongkun-Hongeui(紅巾-紅衣), which showed up in almost all Ka-rae-ban-cha-do. Heukkun-Changos·eogrei(黑巾-창옷·더그레) were worn as well. In the style of costume emphasis convenience and practicality rather than on beauty, because they had to carry the arms used in ceremony with them nevertheless by using primary colors it was very colorful. This costume in Ka-rae-ban-cha-do has little difference, but great changes are shown in Sunjongsunjongbi Ka-rae-ban-cha-do(純宗純宗妃嘉禮班次圖) Most costume of the past was replaced with western hat and suit, so the duplicate state of our costume and western costume came into existence during the period of introducing western civilization.