The theory of traditional Chinese medicine considers that the imbalance of Yin-Yang and the weakened body resistance and
excessive pathogenic qi are the reasons to the occurrence and development of cancer, and thus adjusting Yin-Yang and strengthening the body resistance to eliminate pathogenic factors are the key points of cancer treatment. It emphasizes that the balanced state of body with balance of Yin-Yang and sufficient body resistance can be achieved by adjusting Yin-Yang and strengthening the body resistance, so as to control tumor growth, improve patients’ clinical symptoms and improve patients’ quality of life, which is consistent with the basic treatment idea of modern medical oncology immunotherapy. Modern medical oncology immunotherapy can rebuild normal immune function and enhance anti-tumor ability by breaking immune tolerance and reversing immune escape. Therefore, they have the different approaches but equally satisfactory in tumor treatment. The thought of adjusting Yin-Yang and strengthening the body resistance to suppress cancer in traditional Chinese medicine have important guiding significance for the immunotherapy of tumors. The therapeutic mechanism of traditional Chinese medicine strengthening the body resistance to suppress cancer may be mainly related to tumor immunity.