Overseas Chinese Americans immigrated back to China.

1. Overseas Chinese immigrants from the United States must have China passports and visas to return to China, but it is easy.

2. Overseas Chinese, also known as "overseas Chinese", refer to China citizens who have not yet joined foreign nationality but have lived abroad for a long time; Including those who have obtained permanent resident status in their country of residence, they are called "overseas Chinese" and still retain their citizenship and are still protected by their laws. Overseas Chinese do not include people from other occupations, such as traveling abroad, studying abroad and foreign aid workers.

3. Chinese Americans generally refer to China people with American nationality, who were born in the United States or China or abroad. Is a member of the global overseas Chinese community.

4. Migration refers to the phenomenon that people move in space or move from place A to distant place B to settle down. In the modern international system with nation-state as the main body, immigration can be divided into domestic immigrants and cross-border immigrants, and cross-border immigrants can be divided into English immigrants and English immigrants.