To guide the clinic practice and facilitate the prognosis，the dynamic developing relation between these essential factors in lung cancer of the excessive syndrome defined by TCM theory and those of clinical was explored.Methods:Case files and four-examination records of 123 lung cancer patients were collected with the method of clinic epidemiological investigation and were also sorted into 5 kinds of essential syndrome factors，which were factor without excessive syndrome，factor with blood stasis，factor with qi stagnation，factor with cold coagulation，factor with heat toxin and factor with phlegm-damp. With the application of one-factor analysis of variance、chi-square test and rank test，the relationship between syndrome and relevant clinic factors (for instance: gender，age，position of tumor，ECOG grades，clinic stages and treating method ) were analyzed.Results:The syndrome with phlegm-damp factor accounted for 55.3%，hence it was considered as the basic syndrome pattern of the lung cancer. The heat-toxin factor is mainly present in the later stage，which could be used to indicate the prognosis.Conclusion:Among all the factors of the lung cancer，it was the phlegm-damp that played an important role according to the one-factor analysis of variance between the excessive syndrome of lung cancer and the relevant clinic factors.