Abstract:The security of food and food nutrition have attracted much attention with the improvement of people's living standards.Trace elements in milk and dairy products have corresponding detection methods and limit standard content of heavy metals，however，the content of aluminum and nickel in milk and dairy products is not required by the corresponding product standard and its limited standard.A method for the determination of aluminium and nickel in milk and dairy products was successfully established by（in ductively coupled plasma mass spectrometry）ICP-MS.Method detection limit of Al and Ni was 0.082 mg/kg and 0.011 mg/kg；the correlation coefficients of curves was 0.999 6 and 0.999 8；the average recovery rate was 85.22%-93.23%and 88.13%-95.11%，and the relative deviations were 2.53%-3.06%and 2.56%-3.23%，respectively.This new method developed in this study can detect large amounts of milk and dairy products，the data accumulation can provide reference for detection method and limit requirements in the future.