The invention relates to a preparation method for nano aluminum rich beta zeolite. The method comprises the following steps of: crushing halloysite, and roasting the crushed halloysite for 1 to 4 hours at the temperature of between 600 and 1,200 DEG C; removing aluminum from the roasted halloysite by using inorganic acid till the silicon-aluminum molar ratio is 8 to 18, and washing and drying thehalloysite to obtain a silicon aluminum source, wherein the drying temperature is 100 to 200 DEG C, and the drying time is 0.5 to 4 hours; mixing tetraethyl ammonium fluoride (TEAF), water and the silicon aluminum source to form a reaction mixture in which the molar ratio of SiO2 to Al2O3 is 8 to 18, the molar ratio of H2O to SiO2 is 1.0 to 6.0 and the molar ratio of TEAF to SiO2 is 0.1 to 1.0; and crystallizing the reaction mixture in a closed system, and reclaiming the crystallized product, wherein the crystallization temperature is 120 to 180 DEG C and the crystallization time is 1 to 30 days. The nano aluminum rich beta zeolite prepared by the method can be used as a catalytic activity center; and because of higher-density acid center, the nano aluminum rich beta zeolite has higher catalytic activity.