After divorce, the children can change their family names. What's the procedure? It says above that children can follow their father's family name and their mother's family name. The law stipulates that adult children have the right to change their own names. The change of the names of minor children must be decided by both guardians through consultation.
 So, if you have to change your child's name, it simply requires two steps.
 First of all, we need to negotiate with the biological father of the child, and we need documentary evidence of written consent. If the child is over 10 years old, the child's opinion needs to be sought, but if the child is over 18 years old, the child's consent needs to be obtained
 Secondly, you need to take the household register, ID card, child's household register and other materials to the local police station of the local public security bureau where your household register is located. The household registration agency needs the signatures of both parties before changing the name of the child. Otherwise, one party has no right to change the name of the child, and the household registration agency will not go through the formalities. If one party disagrees and the other party forces the household registration office to handle the case, the other party has the right to sue the renamed party and the household registration office.