The invention discloses a formulation of an artificial feed for cnaphalocrocis medinalis guenee, a method for preparing the same and a method for breeding the cnaphalocrocis medinalis guenee, which belongs to the technical field of insect feed and breeding. The formulation of the feed comprises the following components in portion by weight: 2 to 4 portions of casein, 0 to 4 portions of yeast powder, 1.5 to 3 portions of glucose, 0.5 to 2 portions of cane sugar, 2 to 5 portions of wheat-germ powder, 0.01 to 0.02 portion of vitamin B complex, 0.2 to 0.4 portion of vitamin C, 0.01 to 0.02 portion of vitamin E, 1 to 4 portions of agar, 0 to 2 portions of cellulose, 2 to 4 portions of rice leaf dry powder (which is prepared from rice leaves of tillering stage by drying and crushing at a temperature of 60 DEG C), 0.2 to 0.4 portion of 4M potassium hydroxide, 0.1 to 0.2 portion of sorbic acid, 0 to 0.2 portion of nipalgin, and 90 to 120 portions of water. The feed is prepared simply with low cost, and is favorable for the cnaphalocrocis medinalis guenee which has normal growth and development, thereby overcoming the difficulty that the cnaphalocrocis medinalis guenee cannot be bred for a successive generation artificially, achieving the artificial scale breeding of insects, and providing a material and a method for scientific experiments, chemical medicament screening and the production of a viral pesticide.