To understand the status of claims and tolerances for nutrition labeling of infant formula in current Chinese market, and to provide scientific data for the revision of national food safety standard The Labeling of Prepackaged Foods for Special Dietary Uses. MethodsThe declarations of energy and nutrients on the labels of 21 different brands of milk-based infant formula were recorded, and the contents were measured with the national standard methods and compared with the declared value. Meanwhile, the international literatures were consulted for exploration of foreign management. ResultsThe energy, 30 essential nutrients and 5 selectable nutrients of 21 samples were tested and compared. It was in line with Chinese and international practice that the contents of energy and nutrients were declared with numerical value while setting the tolerance range as≥80%. ConclusionThe results would be adopted to revise the labeling requirements in the revision of The Labeling of Prepackaged Foods for Special Dietary Uses.