My child needs to move his/her hukou when he/she goes to school outside the city. Can he/she still move back if he/she moves out of the country?
 If the non local household registration is rural, it can be moved back. Generally, if the non local household registration is urban, it cannot be moved back to rural. The student's household registration can be moved back to the original residence at any time, but the migration of the residence does not affect the nature of the household registration (even if it is non-agricultural, it is still non-agricultural). If the village does not agree to the party's household registration to be linked (non-agricultural), it can report to the higher authorities or ask the local media for help. If the household registration is moved to the city because the children go to school, the nature of the household registration will be changed to non-agricultural. According to the current household registration policy of our country, the household registration system of our country implements the dual system, and the non-agricultural household registration cannot be changed into the agricultural household registration. If it cannot be changed into an agricultural household registration, it cannot enjoy the treatment in rural areas. If the party concerned wants to transfer his/her household registration to agriculture, he/she needs to have relevant local policies and meet these policies before transferring. This is the relevant law about your problem.