Abstract：This paper introduces Prof. JI Yunxi’s clinical experience in the treatment of cold stuffiness by the method of using acrid medicinals to open and using warm medicinals to promote descent. Prof. JI Yunxi believes that the reason of cold stuffiness lies in the lack of spleen yang and cold- damp obstruction， or lack of kidney yang， so that the ascending and descending of qi is unfavorable，and then cold stuffiness onsets. Such stuffiness syndrome should not be simply treated by the method of using bitter medicinals to promote descent，and thus Prof. JI proposes the “method of using acrid medicinals to open and using warm medicinals to promote descent”. Acrid medicinals not only can diffuse and disperse qi but also can diffuse and rectify qi to open the pathway of yin qi and yang qi. Using warm medicinals instead of bitter meicinals to promote descent，not only can calm ascending counterflow of qi but also prevent the further damages of spleen yang.