The invention provides a method for preparing a Y/CeO2/SBA-15/ASA/MOF composite material containing regular mesopores. The method comprises the following steps: firstly, preparing a guiding agent, preparing a CeO2/SBA-3 precursor, and synthesizing a Y/CeO2/SBA-15 composite molecular sieve from the reaction mixture by adopting a hydrothermal crystallization method; then, adding surfactant and an alkaline aluminum-source solution into slurry of the composite molecular sieve, adjusting the pH value to obtain a solid product; and washing, drying and roasting the product to obtain the Y/CeO2/SBA-15/ASA/MOF composite material. According to the method, the differential thermal failure temperature of the Y molecular sieve in the composite material can be higher than 950 DEG C, and the crystal grains are kept below 400nm. The composite material has the pore size distribution characteristic of micropore-mesopore, mesopores in the surface ASA are regular mesopores, and the mesoporous size can be adjusted by changing the synthesizing process condition.