Nurses who go abroad also go abroad with a nurse's card. The main contents of hemodialysis nurse card include: basic function of kidney and basic disease knowledge, basic principles of hemodialysis, quality of blood purification nurses, basic theory of blood purification equipment, nursing of vascular access, anticoagulation therapy of hemodialysis, observation and nursing of hemodialysis, prevention and nursing of hemodialysis complications, professional operation technology of blood purification center, dietary guidance of dialysis patients, health education and nursing of vascular access, psychological nursing of hemodialysis patients, and nursing of blood purification center.