Content abstract: the United States is the world's only superpower. Science and technology, education, culture, economy are in a leading position in the world. The United States as the world's most important developed countries, it is also a big tourist country, power, and the entry tourism development history also very long, his entry tourist market 5 continents across the world more than 60 countries or regions, and tourism demand intense, entry huge volume, high cost per capita tourism, inbound tourism in today's world is one of the most advanced nation. Content abstract: the United States is the world's only superpower. Science and technology, education, culture, economy are in a leading position in the world. The United States as the world's most important developed countries, it is also a big tourist country, power, and the entry tourism development history also very long, his entry tourist market 5 continents across the world more than 60 countries or regions, and tourism demand intense, entry huge volume, high cost per capita tourism, inbound tourism in today's world is one of the most advanced nation.