How long can I stay in China with a green card after investing in the United States?

Green card holders can't leave the United States for more than six months at a time. If they don't come back after the extension, your green card may be cancelled. There are ways to apply for permanent residence in China. You can leave the United States for two years by applying for re-entry permit.

A green card is just a legal residence permit. If you want to obtain citizenship, you must apply for American citizenship. Simply put, the immigration director in the United States has a green card in the United States, must land in the United States every 180 days, and must have lived in the United States for three years in the five years before applying for American citizenship, that is, the immigration director is cancelled.