Visitors are allowed to bring the following duty-free goods into China:
2 liters of alcoholic beverages, 400 cigarettes , 50g (2 ounces) of gold or silver, US$ less than 5,000, Chinese RMB with a total value less than 20,000 Yuan, Reasonable amount of perfume.
Prohibited imports include: fresh fruit; any kind of arms, ammunition or explosives, including toy weapons or guns; counterfeit currency and securities; printed matter, films or tapes considered "detrimental to China" including banned publications, some religious literature, pirated goods; narcotic drugs; animals and plants.
Remember: All receipts of the valuable articles, such as jade, gold and silver ornaments, handicrafts, paintings and calligraphy, bought in China should be kept for the exit check. Antiques are not permitted to leave China without the proper "Certificates for the Export of Cultural Relics" from the Chinese Authorities.