Abstract:The experimental results indicate that the amounts of Cu, Zn, Fe and Mn in Rubia cordifolia and Agrimonia pilosa var.japonica are very small in boiling water extraets (only 6%). But after digestion they may rise to 30%. It was found that the amounts of four traee elements decreased with the increase of extracting time, but the ratios of Mn/Zn and Zn/Cu were almost the same.