The invention provides a method for detecting drug resistance of chilo suppressalis (Walker). According to the method, a drug-carried artificial feed piece is prepared on the basis of diagnosis dosages of an artificial feed drug soaking method, and the drug resistance of field populations of the chilo suppressalis (Walker) is rapidly detected. The drug comprises the following components in diagnosis dosages: 1.502mg/L of abamectin, 38.8334mg/L of monosultap, 20.9033mg/L of triazophos and 20.2148mg/L of chlorantraniliprole. The method provided by the invention is simple and convenient to use, the toxicity and the activity of the drug can be sufficiently reflected, a small amount of insects is needed, the defects that a conventional bioassay method is large in insect amount, tedious to operate, great in time and labor and the like are overcome, and the drug resistance of the field populations of the chilo suppressalis (Walker) can be rapidly detected.