legal ground
Article 62 of the Civil Procedure Law of People's Republic of China (PRC)
If there is an agent ad litem in a divorce case, I should still appear in court unless I can't express my meaning; If it is really impossible to appear in court due to special circumstances, a written opinion must be submitted to the people's court.
Article 109
If the people's court refuses to appear in court after two summonses, it may summon the defendant to appear in court.
Article 144
If the defendant refuses to appear in court without justifiable reasons after being summoned by a summons, or withdraws from court halfway without the permission of the court, he may make a judgment by default.