Method for preparing hemp seed oil

The invention discloses a method for preparing hemp seed oil. The method comprises the following steps of cleaning hemp seeds to remove impurities, carrying out high-frequency vacuum drying, pre-deshelling by virtue of laser, deshelling by virtue of extrusion, carrying out positive-pressure conditioning, pressing at a low temperature, carrying out high-voltage pulse subcritical extraction on hemp seed cakes, crystallizing and degumming at a low temperature, dewaxing, adsorbing and deacidifying on a moving bed, filtering and the like. The method has the advantages of high preparation efficiency, low refining energy consumption, low refining loss, environmental friendliness and the like.