The ZSM-5 type zeolite produced by means of a template agent based hydrothermal crystallization method is featured with high relative crystallinity and high silica -alumina ratio,wherein the relative crystallinity is no less than 85%,the SiO2/Al2O3 molar ration is no less than 300,the Na2O is no more than 0.1%,and the average grain size is 300nm.