1. Open the mobile phone WeChat, search the health certificate information service on the WeChat search page, click to enter the official WeChat account, and click Follow;
2. Click on the individual in the lower left corner of the WeChat official account message sending page, and select public inquiry from the pop-up list;
3. Enter information such as ID card or ID number, and you can query the health certificate information of individuals or businesses;
4. Finally, download the electronic health certificate according to the prompts.