Focused on epoxy phenolic coated cans of export food packaging products, the differences between domestic and international migration studies regarding the free phenol toxic in the material were analyzed. Using gas chromatography-mass spectrometry (GC-MS) technique, qualitative and quantitative analysis of free phenol detection in epoxy phenolic coated cans were studied. By simulating different experiment environment and conditions, the directional migration characteristics of food about free phenol were researched as well. The method could not only detect the free phenol with little background interference in the sample, but also achieve synchronous detection of qualitative and quantitative analysis of free phenol compound. The method is of the characteristics of simple operation and high sensitivity, and it could provide reference to the analysis method as further supplement and improve the sanitary standard of epoxy phenolic coated cans.