This paper attempts to study on the substantial characters of the sangryang-muns written for the constructions of Sudara-jang and Beopbo-jeon at Haein-sa in the years of king Gwanghae and king Injo. On that basis, it also attempts to declare the first time that the Buddhist Order firstly used long sangryang-mun, and to presume the backgrounds of the constructions. The results are as follows:
First, the queen, Mrs. Ryu and court ladies of king Gwanhae had participated as donators to the constructions. Therefore, it is supposed that the constructions had been promoted by the queen's Buddhistic beliefs as well as the commemoration of the 6th award of eulogistic posthumous title to king Gwanghae.
Second, throughout the history of Korean Buddhism, long sangryang-mun was firstly used in the construction of Sudara-jang. Therefore, we can see the fact that long sangryang-mun was introduced to the Buddhist Order, as donation by royal families. But the long sangryang-mun couldn't be suitable for the traditional customs of Buddhism, the monks wrote additionally the Balwon-mun, so to speak, the pryer address.
Third, the sangryang-mun of Beopbo-jeon was written in the mixed format of long sangryang-mun and traditional Balwon-mun. It is supposed that the Buddhist monks wanted to keep the traditional customs.
Four, in the late period of J oseon dynasty, the same formats as the sangryang-muns of Sudara-jang and Beopbo-jeon have been widely used in the various Buddhist buildings. Consequently, it is supposed that these three sangryang-muns were the embryonic formats for the major types of the late Buddhist building sangryang-muns.