Quality evaluation of Magnoliae Flos and Anthrici Radix was studied to ensure their safety and efficacy, which was based on physico-chemical determination of the content of total ash, acid insoluble ash and diluted ethanol-soluble extract. In addition, quantitative analysis of magnolin and anthricin by HPLC suggested that the content of magnolin and anthricin in Magnoliae Flos and Anthrici Radix was $31.09{pm}15.74%$ and $1.08{pm}0.85%$.