Summary of case history ,Li, male, 58 years old, went to the hospital because of "Left lung cancer more than 8 months after surgery, no radiotherapy and chemotherapy". In June 2011, a left lower lobectomy was performed at Beijing University Cancer Hospital. The pathology showed peripheral moderately differentiated adenocarcinoma, size 1.2×1.0 cm, LN: 0/13. No radiotherapy and chemotherapy, and has been taking traditional Chinese medicine. The CEA has been found to be high since October, at 8.00 ng/mL. ECT: sacrum-pelvic hypermetabolic focus.,TCM diagnosis ,Lung accumulation (lung spleen deficiency syndrome and evil lingering).,Western medicine diagnosis, Left lower lung adenocarcinoma after surgery.,Therapeutic methods ,Fortifying the spleen for replenishing qi and ventilating the lung for resolving phlegm. Treatment: The prescription uses Buzhong Yiqi Decoction for treatment, and at the same time, Shenyi Capsule is used in combination to strengthen the body, and Xihuang Jiedu Capsule and Ruanjian Xiaoliu Tablet are alternately used to detoxify, fight cancer, and prevent recurrence and metastasis.,Clinical outcomes, After taking the medicine, the patient's spirit improved significantly, and his appetite improved. After 16 months of traditional Chinese medicine conditioning, his condition was stable, and the tumor marker CEA decreased slowly compared with before treatment.