Objective To verify and evaluate the clinical evaluation index system for chronic obstructive pulmonary disease（COPD）in stabilization period.Methods Totally 306cases of COPD in stabilization period were randomized into the experimental group and control group

with 155and 151in each.Both groups were given health education and guidance.The control group was given routine western medication.The experimental group was added with TCM treatment such as lungsupplementing spleen-fortifying formula granules for lung-spleen qi deficiency pattern

lung-supplementing kidney-boosting formula granules for lung-kidney qi deficiency pattern and qi-boosting kidney-nourishing formula granules for qi-yin deficiency pattern on the basis of the control group.The treatment lasted for 6months.The changes of frequency and duration of acute exacerbations

lung function

clinical symptom and sign score

6-minute walk distance

dyspnea score and quality of life（QOL）score were observed before and after treatment in both groups.Results Comparing with the control group

the acute exacerbations in the experimental group were less frequent and short in duration（P<0.01）.There was no significant difference between groups in forced vital capacity（FVC）after treatment（P>0.05）.The forced expiratory volume in one second（FEV1）and FEV1%in the experimental group were superior to those in the control group（P<0.05）.The symptom scores

sign scores and total scores in both groups were significantly decreased after treatment except cyanotic score in the control group

especially in the experimental group（P<0.05or P<0.01）.The 6-minute walk distances were increased and dyspnea scores were decreased in both groups after treatment（P<0.05or P<0.01）.There were significant differences between groups in the index mentioned above after treatment（P<0.01）.The QOL score in the experimental group was significantly improved after treatment and the degree of improvement was superior to the control group（P<0.05or P<0.01）.Conclusion The clinical evaluation index system for COPD stabilization period can better reflect the clinical efficacy of TCM treatment according to pattern and distinguish therapeutic effect.