On 10 Nov 2017, China ICAMAferrous fumarate and folic acid suspension opened a 30-day consultation on the “Gucyanocobalamin ferrous fumarate and folic acid capsules autrinideline on Pesticide Residue Trials on Crop”. As a vital component of pesticide management, residue trialabsorption of ferrous fumarate provides scientific justification for MRL deferrous iron sulfate heptahydratevelopment and good agricultural practice for pesticide application, which is of great significance in ensuring food ferrous bisglycinate absorption ratesafety.