Chemotherapy followed by surgery is clinically known as neoadjuvant chemotherapy, the benefit of which is that it can convert a portion of cancer patients who cannot be completely surgically resected into patients who can be completely resected, improving the treatment effect and increasing the cure rate. Malignant tumors are a relatively serious disease with relatively complex treatments. When the malignant tumor develops to the middle stage, the tumor lesions are large, and some of them may have invaded the surrounding tissues or appeared lymph node metastasis and so on. In this case, it is not suitable for direct surgical resection treatment, and it is necessary to reduce the size of the lesion or control metastasis by means of chemotherapy. Tumor patients should choose a suitable plan according to their actual condition in order to achieve a more satisfactory effect of the treatment and thus completely cure the disease. Patients with malignant tumors should keep a good state of mind, avoid excessive tension and anxiety, ensure balanced nutrition, go to the hospital regularly for review after treatment, and carry out relevant treatments under the guidance of doctors.