The invention provides a eucommia ulmoides gum self-repairing gel preparation method, and relates to a self-repairing gel preparation method. According to the method, an acrylate monomer is grafted onto a eucommia ulmoides gum by using free radical polymerization mechanism, and further cross-linking is performed to produce the eucommia ulmoides gum self-repairing gel; and the preparation method specifically comprises: preparing a eucommia ulmoides gum solution having a certain concentration, adding a free radical initiator to the system while adding an acrylate monomer in a dropwise manner, carrying out a reaction at a certain temperature until the phase separation is generated, continuously carrying out the reaction for a certain time, washing the product, and drying to prepare the self-repairing gel. According to the present invention, the repairing efficiency can achieve more than 60% after the cut gel is subjected to splicing contact for 3 h at a temperature of 60 DEG C, and the repairing efficiency can achieve 92% after the cut gel is subjected to splicing contact for 12 h; and the self-repairing gel develops the function of the eucommia ulmoides gum, improves the safety and the durability of the material, and provides the important promotion significance for the expansion of the application fields of eucommia ulmoides gum coating materials, adhesives, biomedicine, building, sensors, aerospace, marine industry, and the like.