Objectives This study was aimed to develop the clinical practice guideline for Soyangin symptomatology. It discussed the principle and method of application of clinical practice guideline for Soyangin symptomatology which focuses on symptomatology, not disease. Methods Based on the previous guidelines, we assessed the guidelines by Appraisal of Guidelines for Research and Evaluation (AGREE II). After AGREE II assessment, we chose and revised the clinical practice guideline. Member of writing committee reviewed and examined "Donguisusebowon" and many articles for developing clinical practice guidelines. Draft of clinical practice guideline was reviewed by advisory committee and approved by Society of Sasang Constitutional Medicine. Results & Conclusions By researching and discussing the Soyangin symptomatology, we establish the evaluation criteria for diagnosis including classification, definition and develop diagnostic algorithm and treatment assessing tool.