The invention discloses a cutting propagation method of magnolia denudate. The cutting propagation method comprises the following steps of 1, seedbed building, wherein (1), the root of kudzu vine, sugarcane bagasse, a glass fiber cutting yarn and hydrophilic non-woven fabrics which are subject to high temperature sterilization are taken, smashed, sieved and mixed evenly according to a specific proportion to obtain a seedbed substrate; (2), the seedbed substrate is laid, the temperature is controlled at 24-25 DEG C, the humidity is controlled at 90-92% RH, and balance is carried out; 2, treatment of cuttings, wherein (1), from late spring to early summer, semi-lignified branches are selected as cutting slips and washed with water and 0.05-0.08wt% of sodium bicarbonate aqueous solution and water; (2), the lower ends of the cutting slips are cut into an inclined mouth shape, the lower portions of the cutting slips are placed into specially-prepared regulating fluid and 0.60-0.66wt% of indolebutyric acid aqueous solution to be soaked; (3), after soaking is completed, corn oil is quickly applied outside the cutting slips; 3, seedbed management, wherein (1), the cutting slips are inserted into the seedbed, and the depth of the cutting slips is 4-5 centimeters; (2), plant ashes are paved on the seedbed; (3), temperature and humidity are kept. The cutting propagation method of the magnolia denudate has the advantages of improving the survival rate.