This study analyzed the fengshui locations of the Heungryunsa site and Dorisa and Mahasa when Buddhism was introduced to Silla. The Heungryunsa Temple was the first temple of the Silla Dynasty, the Dorisa was the first evangelism temple, the Mahasa was the evangelism temple in the Busan area. The dates of construction of the temples do not match, and they were built before fengshui philosophy was introduced from China. First, the characteristics of fengshui location were analyzed through whether fengshui ideology was introduced during the temple construction process and the current building layout of the temple.The locational characteristics of Heungryunsa Temple are unrelated to the theory of fengshui, and the conditions for Sasinsa temple are weak as it is a flat dragon(平支龍). Dorisa and Mahasa Temple chose places deep in the mountains or on high ground considering the risks involved in the process of first transmitting Buddhism. The location was chosen considering seclusion and missionary work, and was in line with the dragon vein theory of fengshui. Valley site(谷地) was selected while expanding the area focusing on Geungnakjeon at Dorisa Temple and Nahanjeon at Mahasa Temple. The location was chosen considering seclusion and missionary work, and was in line with the dragon vein theory of fengshui. Valley site was selected while expanding the area focusing on Geungnakjeon at Dorisa Temple and Nahanjeon at Mahasa Temple. As a result, Dorisa Temple and Mahasa Temple were located in narrow mountainous areas. Because it is a semi-slope site, the dam was placed using an embankment. The conditions for long wind were sufficient as the blue dragon and white tiger were in perfect harmony. Dorisa Temple has a large white tiger(白虎) that completely surrounds the temple area. Ansan(案山) and Josan(朝山) are covered in layers of curtains and have the perfect conditions for monsoon winds. It has a sense of place where it can be practiced in seclusion and where missionary work can also be carried out. Mahasa Temple is buried in the blue dragon mountain range and the outer white tiger blocks the front. Because it is a closed topography that is not exposed to the outside at all, it is an advantageous location in terms of spiritual practice and missionary work.Dorisa is a combustion type in material form theory. From a microscopic perspective, the realm of Jeokmyeolbogung(寂滅寶宮) is in the shape of a flower. Mahasa is a bird's nest-shaped material theory that is shaped like a bird's nest, and has the shape of a golden crane nest with a golden crane incubating an egg.The locations of Heungryunsa Temple, Dorisa Temple, and Mahasa Temple are unrelated to the theory of fengshui. Heungryunsa Temple was located as a flat land temple within the category of despotic kingship according to the social and political environment of the time. The current Dorisa Temple and Mahasa Temple are spatial arrangements based on the theories of dragon veins and long winds of feng shui. It can be assumed that traditional natural geography concepts and indigenous concepts of fengshui would have existed during the Silla Dynasty, regardless of Chinese fengshui ideas. It is expected that this fengshui location analysis will provide a basis for understanding the location-specific religious and natural views of the monks of that era. Before the introduction of fengshui, our traditional geographical ideas regarding the land had been accumulated. Before the acceptance and spread of fengshui ideas and logic, there were empirical logics and positions that had been passed down since ancient times, as well as traditional geographical ideas and location concepts.