The invention relates to a building material which belongs to the technical field of building materials used for wall bodies. The invention provides a novel colorful stone-like paint. Through selection of raw materials and composition optimization, particularly, under the interaction of kaolin, modified cellulose, a sodium salt dispersant, pure acrylic emulsion and a flatting agent, the product form steady colorful stone-like paint particles. Compared with the prior art, the storage stability of the product is obviously improved, the unstratified novel colorful stone-like paint with good stability and good particle dispersibility is obtained, and the transportation range and the using range of the novel colorful stone-like paint are greatly enlarged. Meanwhile, the invention further provides a preparation method of the novel colorful stone-like paint; the adding speed is controlled in a process of adding the modified cellulose, so that the influence of clustering on the property of the colorful stone-like paint particles is avoided.