When someone has cancer, his or her family members are often distracted by fear, talking behind the patient’s back about the severity of the disease and discussing measures to take. At this time, the patient is very sensitive to the family’s expression, attitude, and mannerisms. Therefore, it is important for the family to be comfortable in front of the patient. How should family members assist the doctor to make the patient actively cooperate with treatment? 1, to believe in science, do not indiscriminately seek medical advice, indiscriminate use of drugs, and not to believe in charlatans, resulting in a waste of money and delayed treatment. 2. We should understand the real condition of the patient from the doctor as soon as possible, assist the doctor to choose the best treatment plan, encourage the patient to actively cooperate with the treatment, and strive for good treatment effect. 3.Cancer patients are prone to poor appetite, nausea and vomiting during the treatment process, so patients’ family members should mix the diet well to facilitate their recovery. 4.According to the patient’s ability to bear, gradually tell the patient about the condition and mobilize his or her own enthusiasm to fight against the disease. Family members encountering difficulties or problems should be sympathetic to each other, help each other, in front of the patient, should get along, and strive to create a good treatment atmosphere, so that the patient is not bothered by family matters and concentrate on receiving treatment. 5, patients due to the pain of the disease if, may be impatient and unstable temperament, and even have some excessive behavior. At this time, family members should give understanding, patiently do ideological work, stabilize the patient’s mood, try to reduce the patient’s pain, and strengthen the patient’s confidence in fighting with the disease. 6. Encourage the patient to do what he or she can, such as regulating life, participating in cultural and sports activities and appropriate work, all of which are beneficial to the patient’s recovery.