Using atomic absorption method to determine the lead content of 90 samples in six Auricularia auricula producing area of Hubei province, with Duncan's Multiple Range Test, we find that average of lead content is lower than the reference line(1.0mg/kg) with Fangxian(FX) group, slightly higher with Jingshan (JS) group, located above the baseline with Baokang (BK), Nanzhang (NZ), Zhush...