The invention discloses bean pod borer artificial feed and a preparation method thereof. The bean pod borer artificial feed comprises, by weight, 62.5-70% of water, 2.5-3.0% of agar, 15.0-20.0% of cooked soybean meal, 4.0-6.0% of cooked wheat embryo powder, 1.0-2.0% of cane sugar, 1.0-1.5% of yeast powder and 3.0-5.0% of auxiliary materials. The auxiliary materials comprise ascorbic acid, choline chloride, methyl parahydroxybenzoate, potassium sorbate, formaldehyde, salt and vitamin complex. The bean pod borer artificial feed is simple in formula, low in price and affordable, raw materials are all common substances and are easy to obtain, a problem of shortage of natural hosts such as cowpea and hyacinth bean limited by seasons is solved, and massive and subculture feeding of indoor bean pod borer standard worm source is achieved.