Objectives This research was proposed to present Clinical Practice Guideline(CPG) for Soyangin Disease of Sasang Constitutional Medicine(SCM): Lessor-Yang Wind-Injury (Soyang-sangpung) Symptomatology. This CPG was developed by the national-wide experts committee consisting of SCM professors. Methods First, it was performed that search and collection of literature related SCM such as "Dongeuisusebowon", Textbook of SCM, Clinical Guidebook of SCM and Fundamental research to standardize diagnosis of Sasang Constitutional Medicine. And journal search related to clinical trial or Human complementary medicine of SCM was performed domestic and overseas. Finally, 1 articles were selected and included in CPG for Lessor-Yang Wind-Injury (Soyang-sangpung) Symptomatology of Spleen Cold-based Exterior Cold (Bisuhan-pyohan) disease in Soyangin Disease. Results & Conclusions The CPG of Lessor-Yang Wind-Injury (Soyang-sangpung) Symptomatology in Soyangin Disease include classification, definition and standard symptoms of each pattern. Lessor-Yang Wind-Injury (Soyang-sangpung) Symptomatology is classified into mild and moderate pattern by severity. Lessor-Yang Wind-Injury (Soyang-sangpung) Symptomatology mild pattern is classified into initial pattern and advanced pattern. Lesser-Yang Wind-Injury (Soyang-sangpung) symptomatology moderate pattern is classified into Chest-binding (Gyeolhyoong) pattern and Chest-binding (Gyeolhyoong) advanced pattern.