1. First of all, you need to register with the local education administrative department or the human resources and social security department and pay the corresponding examination fee.

2. After successful registration, you need to take the "Children's Employment Certificate" exam, which includes the knowledge of laws and regulations related to early childhood education, early childhood psychology, early childhood health care and early childhood education and teaching.

3. The examination form is generally a combination of written examination and interview, and the time and place of the examination will be informed at the time of registration.

4. After passing the examination, you can go to the local education administrative department or the human resources and social security department to get the certificate of migrant children.