〔Abstract〕 The incidence rate of lung cancer has the highest in China. Now city people have an annual physical. Examination every year. Because of CT, small pulmonary nodules can be found early in physical examination. However, there is no awareness of physical examination in rural areas and no physical examination projects are carried out, The incidence of lung cancer is hidden, Patients go to the hospital for diagnosis and treatment only when they have uncomfortable symptoms. Therefore, once found, most of them are in the middle and late stage. westem medicine can be treated by radiotherapy, chemotherapy and surgery, but these have great side effects. Combining with traditional Chinese medicine treatment, it can improve the discomfort symptoms of patients. the cure success rate of patients and enhance the health of patients, so as to achieve the good effect of “reducing toxicity and increasing efficiency”. This paper briefly introduces Professor Deng Xu-guang's clinical experience in successfully curing a patient with brain metastasis of lung cancer with the methods of expectorant to remove blood stasis and clear organs, invigorate Qi and protect Yin. So as to expand clinician’s dialectical thinking and treatment ideas.