What problems should I pay attention to when applying for an American business visa interview?

If you want to sign business, the visa officer may ask you to speak English, because the visa officer actually takes your language ability as a reference factor. If the language is not good, the visa officer will think you can't go there for business activities.

Secondly, in terms of dress, it is not necessary to be too formal and decent.

When you interview, you should take all the information with you. If you don't have any information for the visa officer, that's not good.

The most important thing is not to be nervous. Sometimes you get incoherent when you are nervous, which is even worse for your interview.