You can go for a walk outside during chemotherapy, and you need to take precautions to prevent infection. Chemotherapeutic drugs kill tumor cells and at the same time cause some damage to multiple systems of the body, especially the immune system. During the period of chemotherapy, attention should be paid to review the patient’s blood routine, liver and kidney functions and other indicators to assess the patient’s physical condition. If there is no obvious abnormality, patients can lead a normal life. Outdoor walking and other activities are beneficial to the mood and recovery of the disease, and can be carried out. Outdoor activities need to be accompanied by family members, pay attention to weather changes, and do a good job of personal protection and warmth, to avoid cold, infection, and to prevent falls and other accidents; activities to avoid too long, the amount of exercise should not be too strenuous, aerobic exercise is the main; the scope of the activity is recommended to be carried out in the vicinity of the hospital, the transportation is convenient, in case of accidents, easy to rescue. Chemotherapy patients, in addition to drug therapy, to maintain a good and healthy state of mind is also very important, as long as the patient’s physical conditions allow, appropriate outdoor activities are very beneficial to the treatment.