If you get an American immigrant visa, how long can you get a green card after entering the United States? Can I wait in China before I get my green card? Thank you~

Formal green cards are usually sent within 2-3 months after entry. If you get a green card, you must live in the United States for six months within one year, and you can return to China during the immigration period, but not more than six months.

You'd better get a green card before returning home. If you go back less than two weeks after entering the country, the Immigration Bureau will think that you have no intention of staying in the United States and will probably cancel your green card.

If you get an immigrant visa, you have six months to prepare, but you must enter the United States within six months after the visa comes down. What should you do as soon as possible in the meantime? After entering the United States, the customs will stamp a stamp on your passport, indicating that you already have an American green card, but before the official green card is issued to you, you can use this stamp to enter and leave the United States at will, valid for 1 year.