Can the United States return to China immediately after immigration?

If you have just arrived in the United States and don't have a green card, you should check that your passport has a customs stamp (I-55 1). That seal is your temporary green card, and then you can use it to change your card-type green card to the immigration office.

If you want to go back to China, you can do it in a short time. Generally speaking, it will take one to two months.

If it is more than six months, you must apply for a re-entry permit. It seems to cost 380 dollars.

Besides, your time in America is zero. In other words, the time required to become a citizen in five years will be recalculated.