The invention provides a bauxite-based low-creep mullite product, which belongs to the field of fire-resistant materials. The bauxite-based low-creep mullite product is prepared by the following steps of: adding quartz sand, a sillimanite mineral, corundum, industrial aluminum oxide, kaolin and the like into high-alumina bauxite serving as a base material; proportioning, homogenizing, mixing, shaping and drying the mixture; and sintering the mixture at the temperature of 1,650 DEG C under the normal pressure to obtain the low-cost and high-grade bauxite-based low-creep mullite fire-resistant product. In the preparation, a composite technology route is adopted, the mineral composition is optimized and the mullitization during the production and use is effectively controlled, so the high-grade fire-resistant material product can be obtained, the superior high temperature performance of the mullite is brought into full play and the creep is small and the expansion is slight in the use of the product; and the preparation of the product can fully utilize the available resources of China, improve the comprehensive utilization value of the resources and optimize the product structure. The product can be widely applied to the parts, such as heat storage chambers, small furnaces, feeding ports, material passage systems and the like, of glass melting furnaces and other high temperature industrial furnaces.