PROBLEM TO BE SOLVED: To provide a method for transplanting/proliferating a fungus heterotrophic plant.SOLUTION: This method for proliferating the fungus heterotrophic plant includes selecting a symbiotic fungus settlement region of the fungus heterotrophic plant, sterilizing the surface of the selected symbiotic fungus settlement region, crushing the sterilized symbiotic fungus settlement region, washing and collecting mycelial pellet in the crushed product, raising by inoculating the collected mycelial pellet to the root of a host plant to form mycorrhiza, and planting the fungus heterotrophic plant near the host plant formed with mycorrhiza so as to establish a triasymbiotic system of the fungus heterotrophic plant, mycorrhizal fungus, and the host plant.