Generally, 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. Your course of study and the type of school you plan to attend determine whether you need an F-1 visa or an M-1 visa.
Learn More Here: http://travel.state.gov/content/visas/english/study-exchange/student.html