It is generally known that the temple structure in Korea was formalized by the ceremonial principle based on the Buddhist cosmology. But, there have been no concrete studies on how far the two have relationship with each other and what significance it implies in it. In other words, even though the temple structure reflects the Sumeru Mount cosmology which is the Buddhist cosmology, there is still uncertain aspects in the relationship between them. This research is a more concrete approach on what kind of corelation the Sumeru Mount cosmology has with the Korean temple structure. For this, the levels of related documents on the Buddhist cosmology and the Sumeru Mount cosmology have been arranged first. Then, on this basis, it is searched with what symbolism the cosmology has been accepted in the temple structure. The temple is a sacred space that holds Buddha and a profane space which the sattva (ordinary people) can approach at the same time. The site of the temple is also a land that is connected to the residence of sattva and a blissful area of prayer that they can be born again through Buddha at the same time. Thus, the double characteristics of sanctity and profanity are finally inter-connected with each other in the view point of Jinsokburi(Truth and Worldliness are not different), and the temple structure reflects this significance through the symbolism very well. Therefore, the correct recognition on the temple structure can be said as an important aspect to understand the purpose of Buddhism.