The invention relates to a method for extracting pepper oleoresin through ultrasonic continuous countercurrent. The method comprises the following steps: (1) well-chosen black/white pepper dry fruits are smashed to pepper particles to pass through a screen with meshes of 20 to 80, and the screened pepper particles are conveyed in a pre-gumming cage for pre-gumming; (2) the pre-gummed pepper particles are passed in an ultrasonic countercurrent leaching device for extracting; extraction solvent is alcohol with concentration of 65-95%; the weight ratio of the pepper particles to the solvent is (1:5) to (1:10); the ultrasonic frequency range is 10-100 KHz; the leaching temperature is kept in a range of 25-40 DEG C; and the leaching time is 30-90 minutes; and (3) the leached alcohol leachate is passed in a film evaporator for reducing pressure, vaporizing and desolventizing; and obtained concentrate is the pepper oleoresin. The method can improve the dissolution rate of the pepper resin in peppers, shortens the extraction time, reduces the solvent dosage, is easy to operate and is low in labor intensity; and the pepper oleoresin obtained through extraction has excellent dissolution characteristic and dispersity.