According to the regulations, there are the following situations:
1. A citizen's native place should be his grandfather's place of residence (domicile) when he was born and registered in the county-level administrative division.
2. If you can't determine your grandfather's place of residence, follow your father's place of origin;
3. If you can't determine your father's birthplace, register it.
4. If the father is a foreigner or the birth medical certificate does not record the father's information, it will be based on the mother's native place.
5. If the birthplace of abandoned babies is unknown, register the birthplace of the adopter or the county-level administrative division where the adoption agency is located. Name of the country of registration of foreigners admitted to People's Republic of China (PRC) (China).