Do I need a visa to go to Mexico with a business passport?

You don't need a visa to go to Mexico with a business passport. The relevant regulations are: China citizens holding diplomatic and official passports are exempt from visas to Mexico; Ordinary passport holders who travel to Mexico for tourism, transit or business purposes and hold a valid entry visa to the United States can stay in Mexico for up to 30 days without a visa. You can't leave the airport without a visa within 24 hours of connecting flight in Mexico.