What conditions do parents need to immigrate to the United States with their children?

In American immigration law, as long as the applicant is an American citizen aged 265,438+0 or above, he/she has the legal qualification to apply for permanent residence and residence of his/her parents in the United States. The parents of American citizens are immediate family members, so American immigration law stipulates that there is no limit on the number of immigrant visas for parents of American citizens to apply for green cards. In American immigration law, the meaning of "parents" includes: biological parents (whether born in wedlock or not), stepparents and adoptive parents. If this American citizen obtains citizenship through legal adoption, he no longer has the right to apply for the permanent residence of his biological parents in the United States. In addition, permanent legal residents of the United States (green card holders) do not have this qualification.