AIM: Establishment Pb the content determines separately method in ocher's Water decoction and the vinegar decoction. Provide the theory basis and the science instruction for the ocher clinical medication. MET Sample decomposition with hydrochloric acid and potassium fluoride. Determined the content of Pb in different characters mineral medicine haematitum by UV-vis spectroscopy, pH9~10, wavelength 520nm；Determined the content of Pb; .RESULTS It is different to the content of Pb in different characters mineral medicine haematitum. CONCLUSION：It should be differences in the clinical application.