Can I buy succulents in Korea and bring them back to China?

Technically, what you didn't bring back should be smuggled back ... you obviously can't. You must hide it. If you find it, it's over ... even if you throw it away. The same is true of many products imported from abroad. Buying one international package at a time means buying it back like a Universiade. If checked, the money will be deducted and thrown away for nothing. Unlike European and American countries, China has developed and clear international transport laws and regulations, so many things are directly prohibited.