I didn't get my visa in person, and the immigration officer told me about the administrative inquiry. I don't know what happened.

Immigration officials tell you that this is a necessary condition for administrative review. Administrative review means further review of your information.

For example, make a phone call with your work unit or yourself, and conduct one or repeated verification to see if your work is true.

Or if the face-to-face signing officer received other materials other than the passport at that time, it may be that he later reviewed the collected materials to see if they were all true, such as whether the real estate license is true, whether the marriage certificate is true, and whether the bank statement for half a year is true.

In addition to these, if you have other relatives and friends in the United States who are direct or confess themselves, you may also be asking about relatives and friends in the United States. Administrative reconsideration takes several days to several weeks, and most of the time is time-consuming. Of course, if your information itself is true and there are no troublesome relatives and friends in the United States, it is usually faster. However, if the administrative audit finds false information or makes the visa officer suspicious, it is possible to refuse the visa. Good luck.