If the criminal judgment of first instance has not yet come into effect, relatives can't visit during the appeal, but they can hire lawyers to bring their practicing certificates and certificates issued by law firms to visit according to law; If the judgment of the first instance takes effect, you can apply for a visit.
Legal objectivity:
Criminal Procedure Law of the People's Republic of China
Article 23 1
If the defendant, private prosecutor, plaintiff and defendant in incidental civil action appeal through the people's court of first instance, the people's court of first instance shall, within three days, transfer the appeal together with case files and evidence to the people's court at the next higher level, and send a copy of the appeal to the people's procuratorate at the same level and the other party. If the defendant, private prosecutor, plaintiff and defendant in incidental civil action directly appeal to the people's court of second instance, the people's court of second instance shall send the appeal to the people's court that originally tried the case within three days, and send a copy to the people's procuratorate at the same level and the other party.