Changes and relativities between frying oil and chicken strings were analyzed by the indexes such as AV,POV and TBA.The results showed that AV of frying oil and chicken strings increased with the increased frying time,POV increased at first and then decreased,and TBA went up and down unsteadily. AV of frying oil had extremely significant relativity with AV of chicken strings,while had significant relativity with POV of chicken strings and had no relativity with TBA of chicken strings.POV of frying oil had e...