The invention discloses application of blended edible oil compounded of sunflower seed oil and lard in the aspect of obesity resistance. The blended edible oil is prepared by compounding sunflower seed oil and lard, as well as adding 1wt% of caprin; and the prepared blended edible oil compounded of the sunflower seed oil and the lard is for daily consumption use. The blended edible oil compoundedof the sunflower seed oil and the lard disclosed by the invention is simple in proportion, low in cost and good in compatibility; being taken at an intake amount of 25-50 grams per person per day, theblended edible oil is capable of preventing hepatic adipose infiltration and improving lipid metabolism after long-term consumption, thereby achieving the functions of effectively reducing body weight, body fat ratio, fat cell volume, hepatic TG deposition and the like.