Traditional Chinese medicine ( shortened as.TCM) , the origin of which could be traced back to the primitive society, boasts a history of thou-sands of years. It has been the result of a constant accumulation and summary of Chinese people in the long-term period of productive labor, Iiving practices and medical practices. According to the written records in the ancient time, TCM originated in the primitive society; it was in the process of productive labor and Iiving practices that people at the time gradually discovered TCM and then developed it. People in the primitive society, when collecting the edible plants, often ate some so-called poisonous ones by mistake, which would often result in the occurrence of vomiting and diarrhea, even coma and death. This forced people at the time to identify the plants scrupulously in case something unexpected occurred.When people felt sick, they might, however, think of using the plants to cure their illnesses, so the early medical practices were carried out. The Spring and Autumn and the Warring States Period witnessed a rapid development in the Chinese literature, philosophy, natural sciences, etc. , and meanwhile, the medical science was then greatly developed. The publication of the TCM treatise which typified the period, namely Huangdi Neijing , marked the formation of the unique theoretical system of TCM.Not until the late Eastern Han Dynasty was the first TCM treatise Shengnong Bencao Jing ( also Shennon,g's Classic of Materia Medica )published, which laid the theoretical foundation for TCM. Since the publication ofthe work, there have been hundreds of treatises on TCM, all of which have contributed a lot to its development. Among them, Bencao Gangmu ( also An Outline Treatise of Medical Herbs ) written by Li Shizhen in the Ming Dynasty was a world renowned treatise on TCM.