Disclosed is a method of extracting a bioactive ingredient, comprising thefollowing steps: step 1) heating a pre-treated fresh cannabis raw material ina vacuumstate; step 2) cooling an upper part of the raw material; step 3) collecting aliquidformed in step 2) and containing a bioactive substance; step 4) dispensing andstoringthe collected liquid containing the bioactive substance. The present inventionfurtherrelates to a bioactive ingredient obtained using the above method.