The purpose of the electronic health card is to facilitate the people and let residents use the electronic health card to see a doctor in a county, a city or even all hospitals in the country (registration, payment, medicine taking, report inquiry, etc.). ), instead of handling and carrying the medical cards made by various hospitals. The electronic health card is easy to carry. Residents can display the QR code of the electronic health card through their mobile phones, or print and paste it on related physical media.