Provided is an efficient cuttage and propagation method for cardiocrinum giganteum bulb scales. The method includes the steps of preculture of seed balls, sterilization of the bulb scales, processing of the bulb scales, preparation of cuttage substrates, cuttage of the bulb scales and management after the cuttage. According to the method, the bulb scales after sterilization are adopted for cuttage and propagation, the method is easy to implement, the conditions are easy to control, the characters of the female parents are maintained, and meanwhile bulb degeneration and virus accumulation are prevented; before the cuttage of the bulb scales, the preculture of the seed balls is conducted at 20 DEG C to decrease viruses carried by the seed balls, and the cuttage is not limited by seasons; during processing of the bulb scales, by conducting lengthwise cutting on the bulb scales, the propagation coefficient, compared with a normal bulb scale cuttage, is increased greatly and can be increased to over 4.0 times, and when compare with small bulb propagation, the propagation coefficient is increased by over ten times; three days after the cuttage of the bulb scales, a 250 mg/L ABT 2# solution is sprayed into the substrates to promote fast rooting of the bulb scales; around 10 days later, roots germinate, and the rooting rate reaches 98% or above; around 30 days later, seed balls are formed; by adopting the method, a great number of ardiocrinum giganteum seed balls which are healthy and free of diseases and viruses can be obtained in a short time, and therefore the method is suitable for large-scale propagation of cardiocrinum giganteum, and has a wide market application prospect.