Objective To investigate the migration of 2,4,6-triamino-1,3,5-triazine and formaldehyde from melamine food container. Methods Samples which were collected from markets in Shanghai were identified and categorized using infrared spectroscopy. Then the migration of2,4,6-triamino-1,3,5-triazine and formaldehyde were tested referring to GB 4806.7-2016 and GB 31604.1-2015. Results Labelling of some samples were absent, incomplete or even incorrect. The migration amounts of formaldehyde from food container made of urea-formaldehyde resin were much higher than that of melamine. Conclusion Due to the high risk caused by migration of formaldehyde from urea-formaldehyde resin, methods should be established to identify different kind of resin of which the food containers were made.