What if the visa expires in Russia?

1, buy a ticket to return to China. Sometimes you ask questions after the border inspection, and sometimes no one cares. If it is found, it will be fined, and then the passport will be stamped with a black stamp, and the information will be registered in the computers of Russian immigration offices and embassies and consulates. You are not allowed to enter Russia again for five years. You can return to China normally after a fine.

2. Countersign for local processing. Find a company that specializes in handling. Ask the locals in China, they have experience. So there is no black record.

3. Find the embassy and ask them to help solve it. Unlikely.

4. Being arrested by local police and repatriated to China will be subject to administrative punishment and fine. The worst way.