“He” has two usages in the writings of “On Cold Damage”. First，“He” is used as a noun or adjective，such as “harmony of yin-yang”，“normal pulse” and “normal stomach qi”，mainly refer to “the best condition”. Second，“He” is used as a verb，such as “harmonizes the stomach qi”，“harmonizing”，representation of harmonic，namely “adjust to the best” The “He” in the writings of “On Cold Damage” and the “harmonizing method” in the later are not equal. Without explicitly use of such word as “harmonizing method” in the writings of “On Cold Damage”，it becomes the theoretical basis of “harmonizing method” for later doctors understanding and expand.