To determine the content of Hg element in traditional Chinese medicine (TCM) in different varieties and batches to provide a basis for the limited control and market supervision of Hg element in TCM.Methods:The samples were dissolved with microwave digestion.The matrix effect was corrected by the addition of internal standard Bi.ICP-MS was applied to determine the contents of Hg element in TCM for different batches in 11 varieties.SPSS software was applied to the cluster analysis.Results:The Hg element had a good linear relationship (r≥0.999 0).The limit of detection was 0.006 μg/L and the average recovery rate was 100.9% with a 1.9% RSD.RSD values of the repeatability and precision were 1.06% and 2.48%，all less than 5%.And 12 batches of TCM with excessive Hg content were detected.It was affected by the characteristics and origins，and it showed that there were significant differences of Hg content in TCM for 11 batches by cluster analysis.Conclusion:This method is simple and fast with good accuracy and high precision，which can be applied to the investigation of Hg element and analysis of the results in lots of TCM.