How to get a green card for a work visa

You can apply for a green card after obtaining a work visa in the United States, depending on what kind of work visa it is. Generally speaking, there are now H visas (with quota restriction and lottery) and L visas. H Visa channels are: EB2 professionals and EB3 skilled workers. Generally speaking, even if you meet the application conditions and submit an immigration application, you have to wait at least 5 to 10 years to get a green card. Difficulties: I can't take the initiative to change employers after waiting for a long time. I hope my employer won't fire me. In order to get the American green card, I waited so hard that I even missed the opportunity to take off again and again. The route to apply for a visa is to apply for a green card after working in the American branch for one year. However, the US Immigration Bureau has to review many materials of China's parent company and American branch. If the two companies operate normally, it is possible to get green card approval.