Blending oil, also known as high blending oil, is an edible oil which is made by blending more than two kinds of refined oils (except seasoning oil) in proportion according to the needs of use. Blended oil is transparent and can be used for frying, frying, frying, frying or cold salad. Generally, there are refined soybean oil, rapeseed oil, peanut oil, sunflower oil and cottonseed oil. Rice is selected as the main raw material, and special oils such as refined rice bran oil, corn germ oil, tea seed oil, safflower seed oil and wheat germ oil can also be added. The processing process is as follows: more than two kinds of refined oil esters are selected as required, and then deacidified, decolored and deodorized to prepare blended oil. The shelf life of blended oil is generally 12 months. At present, there are only enterprise standards for blending oil, but there is no national standard. Blended oil has a good development prospect and will become one of the favorite oils for consumers.