Three types of andalusite porphyroblasts occur in the Ryoke metamorphic rocks from the Nukata area, Aichi Prefecture. The first type porphyroblast has only one kind domain (oblique Si domain) of which inclusion trail (Si) is oblique to the schistosity of the matrix (Se). The second type has another kind domain (parallel Si domain) of which Si is parallel to the Se. The third type porphyroblast consists of two kinds of domains: central oblique Si domain and outer parallel Si domains. From the systematic distribution of these type porphyroblasts in the area, the oblique and parallel Si domains are considered to have grown during regional and contact metamorphic events, respectively.