The author made layer dissection analysis on the contents of lotus leaf and its extract, embryo and made comparison among them and contrast between them and serum-lowering herbs such as eldrin and cortex querci dentatea in qualified-oriented study. We found that lotus leaf and lotus embryo have many identical element which shows that they both have higher exploration value as a Chinese medicine. Key words: lotus leaf, lotus embryo layer dissection analysisBZ]Tin oxide ultrafine powders used as transparent conducitive films and conductive paint...