Various ZSM-5 zeolite catalysts were prepared by using the reaction mixture TPAH-Na₂O-SiO₂-Al₂O₃-H₂O. The composition and pH of the reaction mixture, the reaction temperature, and the reaction time were found to be important factors for the formation and growth of ZSM-5 crystal. The physical and chemical characteristics of the ZSM-5 catalysts were examined by employing the XRD, SEM, XPS, TPD, IR, and TG-DTA-DTG methods, and their activities were tested by conducting the methanol conversion experiment. The ZSM-5 catalyst was obtained favorably when the SiO₂/Al₂O₃ ratio was greater than 20, the pH in the range from 9 to 10.5 and the reaction temperature about 150 ℃. The catalyst so prepared proved to be very active for the conversion of methanol.