Your F-2 or J-2 dependent should travel with the same documents recommended for F-1 and J-1 students. Your dependents should also travel with copies of your documents, including your enrollment verification or transcript.
If you are already in the U.S. and you wish to bring a dependent to the U.S., you can submit the ISS Dependent Request form. A dependent is your spouse or unmarried child under the age of 21.
If you wish to invite a family member to visit you in the U.S., you can write an invitation letter to support their visitor visa application. ISS does not provide invitation letters. If you are inviting a visitor from China who holds a 10-year U.S. visitor visa, instruct them to register their travel in EVUS, the U.S. Customs & Border Protection (CBP) Electronic Visa Update System. This is required before entering the U.S.