Edible oil and preparation method thereof

The invention provides edible oil and a preparation method thereof, and relates to the technical field of edible oil. The edible oil is prepared by the following steps: stir-frying raw materials, squeezing, separating oil residues, refining and purifying. The refining purification comprises the steps of alkali refining, water washing and drying dehydration of the crude oil. The preparation method of the edible oil can increase the fragrance of the edible oil, reduce the content of free fatty acid in the edible oil, improve the stability of the edible oil, prolong the storage time of the edible oil and improve the quality of the edible oil, and is mainly used for preparing rapeseed oil and walnut oil. Meanwhile, the prepared edible oil is bright in color and luster and mellow in aroma.