This study aims to clarify architectural works of Chuta Ito (1867-1954) known as the first Japanese architectural historian and critic.This paper treats his 4 projects for Nishi-Hongwanji in the end of the Meiji era, and proves the characteristics of his architecture. Ito's projects are designed as fusion of various architectural styles, based on Historicism. The ornaments he loved (palmette, Kato-mado and Sumi-kazari) prove his tendency to making Inter-style architecture, for instance.