Abstract: Volumes 9 and 10 of Sun Simiao's Supplement to Important Formulas Worth a Thousand Gold Pieces record part of Treatise on Cold Damage, which contain Sun Simiao's unique thoughts on six-meridian treatment. Sun Simiao's treatment of Taiyang meridian emphasizes the classification of prescriptions and syndromes, advocates the correct treatment methods, and establishes three guidelines; Yangming meridian emphasizes the differentiation of cold and heat syndromes; except Taiyang meridian, all meridians emphasize the differentiation of outline syndromes. It has made important contributions to the inheritance and development of the six-meridian thought of Treatise on Cold Damage in later generations.