The invention relates to high-oil refined corn gluten meal and a preparation method thereof and belongs to the technical field of corn deep processing. The high-oil refined corn gluten meal is prepared from the following raw materials in parts by weight: 40-60 parts of corn gluten meal and 6-14 parts of high lipoglycoprotein meal. According to the high-oil refined corn gluten meal, vegetable fat contains unsaturated fatty acid so that the animal production performance is improved. According to the high-oil refined corn gluten meal, a sweetening agent with the smell of glycoside, the fat with the fragrance and the lubricant taste are combined, the feed palatability is improved, the ingestion pivot is adjusted simultaneously, the ingestion amount increasing is quick, and the range is large and can be up to 15-20%. By utilizing the high-oil refined corn gluten meal, the energy concentration of a feed and true nutritive rates of dry matters and energy in the feed are improved, and the weight increment of a piglet can be increased by 10%-15%.