More patients with pulmonary nodules were diagnosed along with the improvement of inspection means，but because of lacking sensitive and specific indicators for malignant pulmonary nodules，the main therapeutic strategy is still regular follow-up CT examinations.The key point of Chinese Medicine is to figure out how to prevent nodules' development and make it disappear.However，there were few studies about its theory and treatment strategy.By studying at the classical literature of Chinese medicine and Hua Baojin's clinical experiences in treatment of lung nodules，we put forward that the nature of pulmonary nodule is “phlegm and blood stasis type Kenang”.This study is to discuss the theory and treatment strategy of pulmonary nodule based on the knowledge of “phlegm and blood stasis” and “kenang theory” on Chinese medicine classic literature and modern studies.