trains don't need to be checked. After being fed, they should be put in a small breathable plastic box to check dangerous goods, but not small animals. After you take it directly to the car, no one cares about you.

if you are not sure, you can go to Guangzhou station first to find out whether the security equipment has detected that small animals are not allowed to enter the station. Guangzhou station has a large passenger flow, and it is estimated that this will happen every day.