A citizen of a foreign country who wishes to enter the United States must first obtain a visa, either a nonimmigrant visa for temporary stay, or an immigrant visa for permanent residence. You must have a student visa to study in the United States.

The United States supports international education and welcomes foreign students and exchange visitors. Before applying for a visa, students and exchange visitors must be accepted by their schools or program sponsors.

For details about whole visa process you can visit official site of the US Department of State https://travel.state.gov/content/travel/en/us-visas/study/student-visa.html