What is the essential difference between emigration and getting a green card abroad?

Getting a green card is only the first step to immigration. After getting a green card, you can enter and leave the country freely, enjoy certain benefits and study and work freely. If you study, the tuition fee will be paid as a permanent resident, which is usually lower than that of international students.

If you want to become a citizen of another country, that is, an eventual immigrant, and enjoy the same welfare and political treatment as citizens of other countries, you need to submit a naturalization application within a specified period of time after becoming a permanent resident, such as three to five years, and give up your China citizenship.