Abstract: Post-stroke limb movement disorder is a common functional disorder after stroke. Xuming Decoction in Ancient and Modern Records of the Proven is an important prescription of Zhang Zhongjing for treating "stroke prickly heat, the body cannot hold itself". It has been modified and recorded in many later generations, among which Xiaoxuming Decoction in Important Formulas Worth a Thousand Gold Pieces for Emergency is the most commonly used. With the development of the "internal wind theory" of stroke, the prescriptions of Xuming Decoction were gradually criticized and even abandoned because they often used "wind drugs" and were difficult to understand the medical theory of "internal wind". Based on the viewpoints of "wind prevailing and causing movement" and "internal wind being the change of yang qi in the body", the paper proposes the theory of "inducing wind to promote movement" of Xuming Decoction and believes that "wind is qi". At the beginning of stroke, wind-yang is violently hyperactive, and wind prevails and causes movement, resulting in stroke; after stroke, yang qi is weak, wind is defeated and static, and limbs are unable to use. However, "wind drugs" such as Ephedra sinica Stapf and Cinnamomum aromaticum Nees have the functions of generating wind and promoting movement, revitalizing the decadent and the useless, exciting yang qi, harmonizing the ying and wei, and raising and lowering qi. The Xuming Decoction is mainly composed of "wind drugs", which warms the yang and replenishes the qi, generates wind to excite yang qi, and revitalizes the weak; replenishes the yang to induce wind and promote movement, replenishes qi and generates blood; relieves muscles to harmonize the ying and wei, and dredges the limbs; restores the pivot to regulate the axis of the internal organs, unblocks the qi, and promotes the recovery of limb motor function after stroke, providing a theoretical basis for the clinical application of Xuming Decoction.