The invention discloses a swida wilsoniana oil extracting method which comprises the following steps: firstly, washing a fresh cornus wilsoniana fruit to remove the impurities on the surface of the fresh cornus wilsoniana fruit; secondly, carrying out microwave baking pretreatment on the washed fresh cornus wilsoniana fruit; thirdly, crushing the pretreated fresh cornus wilsoniana fruit into pulp, adding water to extract, and using ultrasonic waves to assist extract; fourthly, removing fruit residues in the extract liquid through centrifugal decantation; fifthly, centrifugally separating the mixed liquid to obtain the swida wilsoniana oil. The swida wilsoniana oil extracting method applies the two physical extracting techniques of microwaves and ultrasonic waves into the extraction of the swida wilsoniana oil, so that the extraction period is greatly shortened, the extraction efficiency is improved, water is used as a solvent in the extracting process, safety and zero pollution are guaranteed, the production cost is lowered, the process is simple, the conditions are mild, the extracted swida wilsoniana oil is high in quality and nutritional value.