The invention provides a fracturing propping agent prepared by sintering oil-based drilling cutting thermal desorption residues, and a preparation method thereof. The fracturing propping agent prepared by sintering oil-based drilling cutting thermal desorption residues is mainly prepared from, by weight, 20-50 parts of the oil-based drilling cutting thermal desorption residues, 28-60 parts of bauxite, below 0-24 parts ( 0 excluded, 24 included) of an FCC waste catalyst, 0-5 parts of a binder and 1-5 parts of a flux. The preparation method of the fracturing propping agent prepared by sinteringoil-based drilling cutting thermal desorption residues comprises the following steps: S1, the oil-based drilling cutting thermal desorption residues, bauxite, the FCC waste catalyst, the binder and the flux are weighed in parts by weight, and then are crushed, and the crushed raw materials and water are mixed and stirred to obtain a mixture; and S2, the mixture prepared in step S1 is granulated, granules prepared by granulation are dried and sintered sequentially, and the sintered granules are cooled to obtain the fracturing propping agent. Recycling of the oil-based drilling cutting thermal desorption residues and the FCC waste catalyst can be achieved, and the problems of high production cost and poor product performances of the fracturing propping agent are solved.