Both o1 visa (also known as o1签证) and h1b visas (also known as h1b签证) are essential for working in the us after graduation. Both are non-immigrant visas.

An o-1 visa is a visa issued to a person of outstanding ability in the fields of science, art, education, business or sports to work in the United States. The visa has no quota, is valid for three years at first and can be extended indefinitely thereafter, depending on the needs of the employer. The h-1b visa is a type of work visa that is issued to foreign skilled workers employed by U.S. companies.

H-1b holders can work in the U.S. for three years before they can apply for an extension for another three years, so the total duration of an h-1b is six years. To get an h-1b visa again in the future, you need to leave the U.S. for at least a year. Foreign workers with H1B status may change employers before the expiration of H1B. A new employer can transfer your H1B status directly from your previous employer. So this is good for H1B holders looking for better opportunities. But the only reason H1B status holders can stay in the United States is because of their work status. Once H1B status holders lose their jobs, they are required to leave the United States the next day. But U.S. immigration law also gives a 180 day gray period, and if a person leaves the country automatically within 180 days of its expiration, immigration authorities generally do not pursue illegal detention.

O1 visa is relatively difficult, so most people choose h1b visa. But there is an h1b visa lottery, and the h1b lottery (also known as h1b抽签) is random, so a lot of people get killed. In addition, there are a lot of application materials for h1b, which are tedious and troublesome to prepare. Many people would choose to entrust h1b to professional h1b lawyers (also known as h1b律师). H1b lawyer’s fee (also known as h1b律师费) is not high, so it is a good choice.

If you prepare the application materials by yourself, you can also do so, but you need to pay attention to various matters needing attention. You can always pay attention to some h1b articles (also known as h1b文章), and there will be reminders of various relevant details.

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