The invention relates to a method for breeding exorista japonica townsend by using argyrogramma agnate as an intermediate host, belonging to the field of biological prevention and control technology. The method for breeding exorista japonica townsend by using argyrogramma agnate as the intermediate host comprises the following steps: feeding the argyrogramma agnate with artificial feed indoors; breeding the exorista japonica townsend by using the argyrogramma agnate as the intermediate host; and storing and releasing the pupas of the exorista japonica townsend. The method provided by the invention has the advantages that: the exorista japonica townsend can be uninterruptedly bred in a large scale and used for preventing and controlling lepidoptera pests in fields; and the application of biological prevention and control on various kinds of crops is promoted, thus the use of chemical pesticide is greatly reduced, the pesticide residue is reduced, and the manpower and material resourcesare saved.