鉴于鲜药在临床应用中对多种疾病的治疗效果优于干品，为了方便对鲜药的应用，使鲜药能够更好地发挥作用，研发适合临床使用的鲜药饮片迫在眉睫。本文以常用鲜药鱼腥草为例，通过统计古籍及现代研究报道，对比干、鲜鱼腥草用量，分析用量差异原因，为鲜药饮片的研发抛砖引玉，以期为今后的鲜药研究提供适当的启示，更好地传承和发扬其特色和优势。

In view in the clinical application of Fresh Chinese medicine (FCM), the treatment effect of FCM on a variety of diseases is better than that of dry one. In order to facilitate the application of FCMto make it play a better role, it is urgent to develop and prepare fresh Chinese medicine decoction pieces (FCMDP) for clinical application. Therefore, this paper takes the common fresh drug Houttuynia cordata Thunb. as an example, compares the dosage of dried and fresh Houttuynia cordata Thunb. by the statistics reports in historical documents and modern studies, and analyzes the reasons for the differences in dosages, so as to provide some enlightenment for the future research on FCM, and to better inherit and carry forward the characteristics and advantages of FCM.