Abstract:Abstract：a quantitative method for simultaneous determination of 11 metal elements in freshwater products by microwave digestion inductively coupled plasma mass spectrometry (ICP-MS) was established. The effects of traditional wet digestion and microwave digestion on the determination of freshwater products were compared. The experimental results showed that the microwave digestion method can not only quickly release the elements to be measured from the matrix of fresh water products, but also retained them in the digestion solution, and the recovery rate of the elements to be measured is high. The established method was used to determine the reference materials of the GBW10024（GSB-15）of scallop and the GBW10051（GSB-29）of pork liver, and the results were in good agreement with the standard values. Microwave digestion ICP-MS method was used to determine various metal elements in commercial freshwater products. The sample recovery was 91.20% ~ 110.81%. The method is fast, accurate and sensitive, meets the requirements for the analysis and determination of metal elements in a large number of fresh water products, and can provide a basis for the public security department to maintain the safety and stability in the field of "food , drug and environment".