This paper aimed to identify the variation of layout in Hwangnyoungsa buddhist temple site based on studying published the excavation research paper and texts related to layout. According to earlier studies, in 1st construction period(553～569) of Hwangnyoungsa, there were trisection spaces with one main hall and two corridors in inner part and then in 2nd period(584～645), unified one. But actually trisection spaces had been maintained until the middle part of 8th century. And in each space there was the main hall with large yard. That is the 2nd period layout of Hwangnyoungsa. For the attainment this result, each building remains are judged under duplicated situation which one was the previous and next by consideration of the construction condition and special features of foundation. Although the meaning of trisection system of Hwangnyoungsa is similar with the layout of ancient palace, it could be said to derive from accumulation excavation research in Silla's archeological site and such studies.

The study on Buddhism architecture in early Joseon dynasty was inactive. The period of King Sejo is important for studying the trend of Buddhism architecture in early Joseon, that was transmitted from the end of Goryeo dynasty, but it was difficult to know its exact situation due to lack of related records. The records were all written by Kim Su-ohn, which are Wongaksabi' 'Sangwonsajungchanggi' 'Bongseonsagi 'Geonginsajungchanggi'. The main hall was mainly second floor and there were necessarily annexed buildings at the right and left of the main hall. So the plane figure of □□□ was shown. It was a main stream for monk's living hall and meditation hall to be located at the right and left of yard in front of main hall. This layout may be referred to search for the origin of the layout in courtyard based structure(中庭形) in the late Joseon dynasty. Most of temples had 3 gates. Some part of horizontal corridor was used as 2 gates and the outer gate, far from main hall, was without corridor. The gate leading to front yard of main hall was called front gate, the next was middle gate and the outer gate was Oisamun(外沙門 )or Samun(沙門). In most of the temples, people could enter into the front yard through pavilion which had the function of bell tower. The pavilions were located between front gate and first corridor. It is thought that this layout of the place for making bean curd outside the temple area will contribute to different studies on temples making bean curd in the future. The records about temple's foundation studied above are a little different between temples, but have more similarities. These common denominators represent the architecture tendency of Buddhist temples in the related period. It is thought that such a tendency was also shown on architecture of other temples during the reign of King Sejo as well as Buddhist temples.