What are the requirements for China people to transfer to American citizenship?

Immigrants need immediate family members, that is, parents or children have American green cards. If it's grandma, grandpa, aunt, uncle, you have to arrange it. Five years, 10 years is possible. Such immigrants can get green cards when they arrive in the United States.

There are also skilled immigrants or investment immigrants, as the name implies. The specific requirements are very demanding. I think if you could do these two things, you wouldn't come here to ask.

Non-immigrant: study, work visa, you can apply for a green card after paying taxes legally in the United States for 5 years.

There is no way to apply for a green card for short-term visiting relatives, traveling and visiting relatives.

The last point is to apply for political asylum or refugees. . . Difficult!