The problem of children's household registration after divorce is generally solved together with the settlement of the divorce problem. For the household registration of divorced couples, according to the relevant provisions: "The parties to the divorce may go to the local public security police station to handle the household separation or transfer procedures with the original household register and the court's judgment or mediation statement, and the local public security police station shall handle the household separation and registration procedures according to the court's judgment or mediation statement." According to the household registration management provisions, The child's household registration can follow the father or mother, and it belongs to the migration between immediate relatives. So.
 1. Usually, after divorce, the child's household registration will go with whoever has the custody of the child;
 2. If the child is less than 18 years old, parents are required to handle the migration of household registration;
 3. If the child has reached the age of 18, he can handle the transfer of household registration by himself;
 4. If you are over 18 years old, you can apply for a separate account with your own ID card and local police station. We know that after marriage, the hukou of both parties is combined. If the child has already handled the hukou and needs to move the hukou, the other party needs to cooperate; If the child has not yet applied for the household registration, the party who has obtained the custody of the child wants to apply for the household registration for the child, it needs to go to the residence of the party who has custody of the child after the household registration of the husband and wife is separated.