Objective To conclude SHAO Changrong’s medication regularity in treating chronic obstructive pulmonary disease（ COPD） of lung and kidney Qi and Yin deficiency syndrome. Methods Included 190 patients suffering from COPD

with 220 visit times of the outpatients from special outpatient service of Professor SHAO Changrong in Longhua Hospital Affiliated to Shanghai University of Chinese Medicine. Abstracted information of medicines and conducted normative approach. Counted the frequency of herbs used. The researchers conducted analysis on the association rules of medical combinations. and built network diagram of core herbs. Results Totally 220 prescriptions with 137 herbs were included. There were 7 herbs with usage frequency greater than or equal to 110

including Sangbaipi [Cortex radicis Mori albae]（ 214）

Sangshen [Fructus Mori albae]（ 214）

Sangye [Folium Mori albae]（ 214）

Sangjisheng [Ramulus Loranthi]（ 210）

Shegan [rhizoma belamcandae]（ 122）

Chenpi[Pericarpium Citri reticulatae]（ 113）

Qingpi [Pericarpium Citri reticulatae Viride]（ 113）; there were 47 herbs with usage frequency greater than or equal to 100 and 11 herbs with usage frequency greater than or equal to 200; got172 rules after conducting association analysis. The first five herb combinations according to confidence coefficient were Qingpi→Chenpi

Chenpi→Qingpi

Sangbaipi→Sangye

Sangye→Sangbaipi

Sangjisheng→Sangye. Conclusion SHAO Changrong prefers using herbs that tonify lung and kidney

regulate Qi and relieve asthma to treats COPD of lung and kidney Qi and Yin deficiency syndrome. He uses gentle herbs and pay attention to diagnosis and treatment from Qi aspect.