Abstract: OBJECTIVE To broaden TLC identification detection way, improve the detection ratio of herbal drugs in Chinese traditional patent preparations. METHODS Apply the sample solution in thin plate, after developing, study increasing fluorescence reaction by different ways. RESULTS The various components that without detection information in herbal drugs showed different color fluorescence and clear spots, which improved detection sensitivity and provided more detection information. CONCLUSION The study effectively broadened TLC identification application fields, made several herbal drugs that without detection information be able to be qualitative and quantitative controlled with high sensitivity and accuraey.