The invention belongs to the technical field of edible oil, particularly relates to blending oil containing corn oil, and further relates to a preparation method of the blending oil. The blending oil comprises maize germ oil, sesame oil, walnut oil, olive oil, peony seed oil, sunflower seed oil, rapeseed oil, lard oil, apple seed oil, grape seed oil, pomegranate seed oil, camellia oil, peanut oil, wheat germ oil, kiwi fruit seed oil, linseed oil and pine nut oil. The blending oil containing the corn oil has the beneficial effects that the source of nutrients is wide and the safety is high; a processing process is simple and the production cost is low; the blending oil is convenient to eat and the stability of the blending oil is higher than that of single oil; various types of edible oil beneficial to human health are blended to change the composition of fatty acids, so that the blending oil does not generate bad influences on the body and has the active effects of inhibiting and preventing cardiovascular and cerebrovascular diseases including hypertension, hyperlipidemia, atherosclerosis and the like, reducing serum cholesterol and triglyceride, eliminating in-vivo lipid hyperoxide and moistening skins.