There is no scientific evidence to show that fruits and vegetables in the diet have anti-cancer effects, therefore, we should not overly hope that fruits and vegetables can achieve the corresponding effects, but should be treated rationally. Anti-cancer needs to be treated according to the patient’s condition and specific treatment plan should be formulated by the doctor, and the patient should actively cooperate with the treatment.1.Surgical treatment: For early stage cancer without metastatic lesions and limited tumor scope, and if the patient is in good physical condition, radical treatment such as tumor resection and extended radical surgery is feasible. For cases such as tumor development, metastasis, and those who cannot undergo radical surgery, palliative surgery is often performed to relieve patients’ pain and prolong their lives. Other treatment modalities include diagnostic surgery, preventive surgery, metastasis surgery, etc.; 2. Chemotherapy: commonly used chemotherapy drugs include hormonal drugs such as tamoxifen, antitumor drugs such as doxorubicin, anti-metabolic drugs such as methotrexate, etc., and alkylating agents such as cyclophosphamide, and platinum drugs such as vincristine and cisplatin. However, chemotherapy drugs often cause different degrees of toxic side effects, such as liver damage, cardiotoxicity, neurotoxicity, hair loss, etc., which need to be applied under the guidance of doctors; 3. Other treatment modalities: including radiation therapy, targeted therapy, immunotherapy, etc. Early stage breast cancer, stomach cancer, colon cancer and other diseases have the possibility of cure through active treatment, while other cancer patients can also strive for maximum therapeutic effect through active treatment.