Disinfection of leukemia patients’ home can be carried out by environmental disinfection and contact object disinfection. 1. Environmental disinfection: open the windows regularly every day to keep the indoor air fresh and reduce the number of indoor microorganisms, open the windows for about 30 minutes each time to achieve the purpose of replacing the indoor air. If you can’t open the window for ventilation due to cold or air pollution, you can use disinfectant indoor spraying method, the main disinfectants are: hypochlorite solution and so on. 2. Disinfection of contact objects: Wipe furniture and other objects frequently touched by patients with chlorhexidine and other disinfectants. Dishes and chopsticks can be washed and then sterilized in a disinfector or boiled for 30 minutes, which can have a good disinfection effect. Leukemia patients should avoid going to crowded public places to avoid increasing the risk of infection while following the doctor’s instructions for active treatment.