Cancer patients are a special group of people. The psychology of cancer patients is mainly divided into the following two situations: First, the psychological state caused by cancer lesions. After suffering from cancer, they think cancer is an incurable disease, so they have a psychological state of fear, despair, disappointment and denial of the disease, lose confidence in the future, resist passively, and are in a self-perpetuating psychological state. Many patients think that radiotherapy and chemotherapy are ineffective, and they are also in resistance to the toxic side effects caused by radiotherapy and chemotherapy, thinking that radiotherapy and chemotherapy will accelerate the progress of the disease. Some patients think that pathological puncture or surgery will speed up the spread of tumor lesions, so they refuse radiotherapy, chemotherapy, pathological puncture and surgery, and are in a state of passive resistance and despair.