The invention relates to a preparation method of a Ruddlesden-Popper-like perovskite type catalytic material, and the method comprises the following steps: 1, respectively weighing a perovskite metalprecursor comprising a rare earth nitrate and a transition metal nitrate, a metal oxide precursor comprising a nitrate of one element of an alkaline earth element, a boron group element or a transition metal element, and a complexing agent; dissolving the rare earth nitrate and the transition metal nitrate and the nitrate in the metal oxide precursor into deionized water, and then adding the complexing agent; 2, stirring to form a wet gel; 3, standing to obtain a dry gel; 4, adding the dry gel to a reaction kettle, meanwhile adding a surfactant and deionized water to the reaction vessel, adjusting the pH, and reacting at 200 DEG C; 5, drying; and 6, roasting. The catalyst prepared by the method not only has the original advantages of high-efficiency catalysis of perovskite, but also achieves multi-metal synergistic catalysis, thereby more efficiently catalyzing the oxidation of VOCs and avoiding the amplification of defects of homogenous metals.