Yes, in most cases, both spouses are required to attend the marriage-based green card interview. This interview is an essential part of proving that your marriage is genuine and not just for immigration purposes. If you’re applying from within the United States (Adjustment of Status), you and your spouse will be interviewed together at your local USCIS office. If you’re applying from abroad, the U.S. citizen or green card holder spouse may not be required to attend the interview at the consulate, but it’s still highly recommended to provide support if possible.
If either spouse cannot attend due to an emergency, it’s important to notify USCIS or the consulate immediately, as missing an interview without notice can lead to delays or even denials.