Due to the influence of modern environmental pollution and lifestyle, lung cancer is still a major public health problem in China, while modern Western medicine has limited means of treatment and more adverse reactions, and the treatment of lung cancer by traditional Chinese medicine (TCM) is also controversial, and the combination of TCM and Western medicine has already become a new trend in the treatment of lung cancer. With the great attention paid to traditional Chinese medicine and the deep development of modern pharmacology, the active ingredients of traditional Chinese medicine have been gradually explored, and the effectiveness of traditional Chinese medicine in the treatment of lung cancer can be reflected in the objective indexes. The paper analyzed the mechanism of Xiangsha Liujunzi Decoction Plus Reduction on lung cancer with Qi deficiency and phlegm-stasis pattern from both Chinese and Western medicine, and found that this formula can play the roles of anti-tumor, regulating the immune function of the body, prolonging the survival period of the patients, reducing adverse effects induced by antitumor therapy, improving patients‘ physical functioning and enhancing quality of life，which fully confirmed the prospective and superiority of the combination of Chinese and Western medicine in treatment. It demonstrates the prospective and advantageous nature of combined Chinese and Western medicine treatment, which is expected to reduce the chances of cancer as well as the morbidity and mortality of lung cancer, provide a new direction for the prevention of cancer and the comprehensive treatment of lung cancer, and offer a new hope to the tumor patients.