李时珍（1518-1593），是晚明以来享有盛誉的杰出医药学家，而他六十周岁（1578）时撰成的《本草纲目》，则是中国医学史乃至世界科学史上一部不朽的巨著，影响深远。值此李时珍诞生480周年、《本草纲目》成书420周年之际，重温《本草纲目》早期外传历史，藉志纪念之情。李时珍 Li Shizhen (1518-1593) is an outstanding medical scientist who has enjoyed a good reputation since the late Ming Dynasty. The “Compendium of Materia Medica” he wrote at the age of 60 (1578) was an immortal masterpiece in the history of Chinese medicine and even in the history of the world. Far-reaching impact. On the occasion of the 480th anniversary of the birth of Li Shizhen and the 420th anniversary of the completion of the “Compendium of Materia Medica,” he reviewed the early history of the “Compendium of Materia Medica” and commemorated the occasion. Li Shizhen