The invention discloses a cultivation method for increasing the grafting survival rate of macadimia nuts. The method includes the following steps of cultivating stock, wherein the position, 8 cm away from the surface of a sand bed matrix, on the face of the upper portion of the stock is cut to form a notch with the length of 3 cm after 5-7 leaves grow on a stock seedling, and the middle of the notch is dug to form a cylindrical blind hole with the length of 1.5 cm; processing a scion, wherein an inclined face notch is formed by shearing the scion from the position 3 cm away from the base part of the scion to the base part, a cylindrical protrusion which is 1 cm long and matched with the cylindrical blind hole of the stock seedling is reserved in the middle of the inclined face notch, a protection agent is aligned with the inclined face notch and the cylindrical protrusion, and the inclined face notch and the cylindrical protrusion are smeared with the protection agent; primary grafting is conducted, wherein grafting promoting agent diluent is dropwise added into the cylindrical blind hole of the stock seedling, the cylindrical protrusion of the scion is aligned with the cylindrical blind hole of the stock seedling, and the butt joint inclined face of the cylindrical protrusion and the cylindrical blind hole is coated with grafting promoting agent diluent so that the stock seedling and the scion can be tightly combined and primary grafting can be completed. By means of the method, the grafting survival rate reaches up to 91.7%.