Objective To study the correlation between the pulmonary function and the TCM syndrome distribution in the stationary stage of the chronic obstructive pulmonary diseases（COPD）.Methods The documents of 890 COPD patients in the stationary stage were collected.Their pulmonary functions were classified according to different degrees.A questionnaire-based investigation was carried out to compare pulmonary functions with the TCM syndrome distribution.Results There were 8 TCM syndromes involved in the 890 patients

those syndromes with frequency ≥20% were qi deficiency of the lung and spleen

qi deficiency of the lung and kidney

qi deficiency of the lung

blood stasis

qi and yin both deficiency of the lung and kidney

and phlegm damp obstructing in the lung.In patients with pulmonary function of the mild and medium（I or Ⅱ degree）

the frequent syndromes were qi deficiency of the lung

qi deficiency of the lung and spleen

qi deficiency of the lung and kidney

blood stasis

and phlegm damp obstructing in the lung.In patients with pulmonary function of the severe（Ⅲ or Ⅳ degree）

the frequent syndromes were qi deficiency of the lung and kidney

qi deficiency of the lung and spleen

qi and yin both deficiency of the lung and kidney

blood stasis

and phlegm damp obstructing in the lung.With the declining of pulmonary function

the frequency of qi deficiency of the lung was becoming lower

while that of qi deficiency of the lung and spleen

qi deficiency of the lung and kidney

qi and yin both deficiency of the lung and kidney

blood stasis

and phlegm damp obstructing in the lung was becoming higher（P<0.01）.Conclusion The common syndromes when pulmonary function is in mild or medium damage are qi deficiency of the lung

qi deficiency of the lung and spleen

and qi deficiency of the lung and kidney.The common syndromes when pulmonary function is in severe damage are qi deficiency of the lung and spleen

qi deficiency of the lung and kidney

and qi and yin both deficiency of the lung and kidney.The frequency of syndromes of blood stasis and phlegm damp obstructing in the lung are getting higher with the decline of pulmonary function.