In this study

the contamination status of five heavy metals（cadmium

copper

lead

Arsenic

mercury） in prunella vulgaris L. was obtained through literature investigation and statistical analysis. The results showed that Pb was most heavily contaminated

with an over standard rate of 34.48%. The risk exposure and non-carcinogenic risk were also assessed by using health risk assessment theory system. The results showed that when taking prunella vulgaris L. as guidance in Chinese pharmacopoeia

neither each heavy metal nor the five heavy metals together would lead to non-carcinogenic risk.