Following the establishment of royal kiln( 官窯) in Joseon period, the inscription, which was marked on white porcelain, is divided into two groups of ‘Cheon( 天)ㆍJi(地)ㆍHyeon(玄) ㆍHwang(黃)’ and ‘Dae( 大)ㆍJung(中)ㆍSe(世)ㆍCheo(處).’ This study aims to clarify that both Saongwon( 司饔院) and Naesusa( 內需司) participated in manufacturing the white porcelain of the royal kiln in the early Joseon period by grasping a meaning of each inscription group. W hat is dually divided the inscription that was marked on the white porcelain produced in the royal kiln is the phenomenon that is shown due to being different from the producing subject and the using source in the white porcelain produced in the royal kiln. On the white porcelain that is used in Saongwon, first four pieces of characters in the Thousand-Character Classic such as ‘Cheon ㆍJiㆍHyeonㆍHwang’ were expressed. This division may imply four Jejo( 提調)s who had been working-level personnel and managering officer in many tasks of Saongwon. Saongwon had a constituent of human resources based on Saongsabeon( 司饔四番) which separate constituent of human resources and tasks by the method of quartering from the days of Saongbang( 司饔房) in the beginning of the ✽ HanUl Research Institute of Cultural Heritage national foundation. Even after it, Jejo of Saongwon was basically set to be a multiple of four. Accordingly, even the management of the goods was made with four division units, thereby being judged to have been indicated characters of the Thousand-Character Classic in ‘CheonㆍJiㆍHyeonㆍHwang’ on the white porcelain produced in the royal kiln that had been administered by Saongwon. The white porcelain produced in the royal kiln of the early Joseon period was taken charge of a partial role even by Naesusa as well as Saongwon. Unlike Saongwon, Naesusa managed the privy purse asset which designated as Naeyong( 內用) of royal family and prepared several kinds of goods. Naesusa itself manufactured a group of white porcelain that is necessary for kind of privy purse use. Accordingly, unlike the white porcelain of Saongwon, the white porcelain that is managed by Naesusa was divided by being marked the name of ‘DaeㆍJungㆍSeㆍCheo.’ The corresponding inscription is considered to imply a bowl, respectively, for a king´s palace(大殿), place of the Queen(中宮殿), place of crown prince(世子 殿), other royal family and for a wide use of Naesusa. What Saongwon and Naesusa indicate the mutually different inscription on the white porcelain produced in the royal kiln is to prevent the goods with a different character from being mutually mixed by distinguishing the goods between national use called Gukyong( 國 用) and privy purse refer to Naeyong.