Abstract: Based on Qian Yi's view of lung dominant asthma， the national renowned experienced TCM doctor Wang Shou-chuan points that asthma is the representative of the lung system disease. The dominant mechanism of the disease is the disorder of qi. The sthenia type is caused by the pathogenic evil invading the body， and the asthenia type is caused by deficiency of qi and yin. For treating sthenia type， getting rid of the pathogenic evil and smoothing the free flow of qi can be used， and for the asthenia type， replenishing qi and nourishing yin for beneficing lung method can be chosen. Clinically， there are more sthenia type， and getting rid of evil and beneficing healthy qi methods are always used together. Appendix was taken as an example.