A purpose of this paper is to clarify the architectural characteristics of Syogon-ji temple in Yatsushiro-shi. It is a Jyodo sect temple of the Edo era. There are many traces of repair in the current main hall. As a result of having compared the current main hall with the old drawing of 1795 while considering them, it was revealed that the current main hall and the drawing were the same buildings. Then the roof is shikoro form and these depth is 6ken. From this, it was built according to a law established in 1668 (kanbun8). The plan is a prototype of the main hall of the Jyodo sect, but there are the inherent characteristics. They are asymmetry, the vague border of the inner sanctum (Naijin) and the unity of the inner sanctum (Naijin) and the outer chamber (Gejin) . We considered that the reason of the latter was influence of the Jishu sect.
