Furan is a possible human carcinogen (Group 2B). To determine its partition coefficients (K) in edible oils, the furan was detected by the multiple headspace extraction-selected ion flow tube-mass spectrometry and the equation forKwas established and validated. The results showed that theKvalues in macadamia, soy, peanut and olive oils are 338.5, 328.4, 336.4, 318.6 (60 ℃) respectively. The method has an excellent precision (RSD＜6.1%) and good accuracy. This method is simple, practical and does not need the furan standard. The derived equation in this paper is valuable for the determination of theKvalue of other volatile compounds.