Preferable synthesis conditions for zeolite UTM-1 are studied; UTM-1 is crystallized under similar conditions to those of MCM-22, although it prefers high SiO2/Al2O3 ratio in mother gel. UTM-1, composed of the same basic building unit as ZSM-5, shows strong acidity comparable to that of ZSM-5. Although small aperture of UTM-1 actually restricts the catalytic activities, its large outer surface area enables the high catalytic activity in reactions occurring at the outer surface of catalyst.