The invention belongs to the technical field of chemical synthesis and particularly relates to emulsified paraffin and a preparation method thereof. The emulsified paraffin is prepared from a component A, a component B and a component C, wherein the component A is prepared from paraffin, the component B is prepared from stearic acid, glycerin monostearate, fatty alcohol-polyoxyethylene ether, high-carbon alcohol, hydroxymethyl cellulose and water-soluble starch, and the component C is prepared from alkali liquor. The emulsified paraffin is simple in process and low in energy consumption, the dosage of required emulsifiers is small and is only 6%-7% of the paraffin amount, and the rotating speed of a stirrer is greatly decreased; and a product is placed at a shade place in a sealed mode, and thus the product can be stored for one year without layering, demulsifying and caking.