摘要：【中文】本发明涉及一种酸碱复合催化剂以及使用其制备甲基丙烯醛的方法，具体地，本发明的酸碱复合催化剂包括复合酸和复合碱。本发明的酸碱复合催化剂在用于制备甲基丙烯醛时，可表现出高活性和高稳定性，而且产品纯度高，适合于连续生产。 【EN】The invention relates to an acid-base composite catalyst and a method for preparing methacrolein by using the same, in particular to the acid-base composite catalyst which comprises a composite acid and a composite base. When the acid-base composite catalyst is used for preparing methacrolein, the acid-base composite catalyst has high activity and high stability, and the product purity is high, so that the acid-base composite catalyst is suitable for continuous production.