The invention discloses a breeding method for preventing aphidius gifuensis species from degrading. The breeding method consists the steps: bee species collection: collecting mummified aphids formed by artificial breeding of aphidius gifuensis and mummified aphids formed by field aphidius gifuensis, and storing the aphidius gifuensis in test tubes; bee species cultivation: placing the test tubes in an arterial climate box for cultivation, purifying the aphidius gifuensis after the mummified aphids in the test tubes are hatched into aphidius gifuensis; aphidius gifuensis mating: mating the artificially bred aphidius gifuensis and the field aphidius gifuensis; breeding: selecting myzus persicae, namely the host of aphidius gifuensis, and making the mated aphidius gifuensis to naturally breed with myzus persicae; when myzus persicae start to form mummified aphids, screening and collecting the mummified aphids and storing the mummified aphids in a storage bottle to obtain the bred mummified aphids. The breeding method mates and cultivates the artificially bred aphidius gifuensis and the field aphidius gifuensis, improves the eclosion rate and the spawning rate of aphidius gifuensis, meanwhile improves the activity of aphidius gifuensis and the quality of the aphidius gifuensis species, and prevents the aphidius gifuensis species from degrading.