Based on the discussion of the theory of “treating different diseases with the same method” in traditional Chinese medicine (TCM),combined with the representative medical cases,using Wendan Decoction to reduce dampness and phlegm,this paper has a deep understanding of Professor LI Kunyin's important academic thought and clinical experience of Lingnan area common gynecological diseases,such as “treating different diseases with the same method,heart and kidney homology,moisturizing and phlegm running through the with Wendan Decoction”,in order to learn from future generations.