1. Objectives: We study on indications and directions of Euphorbiae Kansui Liou ex Wang in Sasang Constitutional Medicine by applications of Euphorbiae Kansui Liou ex Wang. 2. Methods: We analyzed indications and directions by bibliographical applications of Radix Euphorbiae Kansui Liou ex Wang in Traditional Oriental Medicine and Sasang Constitutional Medicine. 3. Results and Conclusions: 1) Euphorbiae Kansui Liou ex Wang is used for various indications which are congested fluids, accumulation, edema, and etc in Traditional Oriental Medicine and Sasang Constitutional Medicine. 2) In Sasang Constitutional Medicine, Euphorbiae Kansui Liou ex Wang is taken by powder in a single-medicine prescriptions and taken with calomelas by powder and tablet in prescriptions, and we have need of clinical study of Radix Euphorbiae Kansui in the future.