Catalytic alkylation of aniline with methanol was studied at atmospheric pressure, 420℃, and aniline/methanol feed molar ratios of 1:3 in a fixed bed reactor. Catalysts were prepared from commercial X-tipe zeolite by ion exchange with alkali cations or impregnation of NaN₃. After reaction, the conversion is decreased in the catalyst sequence HX>MgX>NaX>KX>CsX, C-alkylation was found relative highly in acid and strong basic catalyst. These results suggest that N- and C-alkylation depend on the catalyst acidity and basicity. The distributions of acidity and basicity were also investigated by DSC and correlated with performance of the catalysts. It was thought that a surface acid property played an important role in the course of the reaction.