(Except from the No. 56 Decree of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China: The Administrative Provisions on Quarantine of Luggage Carried by Inbound and Outbound Personnel)
 
1. An inbound or outbound passenger carrying following objects shall declare them to the quarantine and inspection authority and subject the objects to quarantine. Objects which have not been declared and quarantined are barred from entry or exit. 
 
(1) Inbound: animal and plant products and other objects subject to quarantine; 
 
(2) Inbound and outbound: microorganisms, human tissues, biological products, blood, blood products, and other such objects; 
 
(3) Inbound and outbound: skeletons, ashes, corpses, and coffins;
 
(4) Inbound and outbound: luggage and objects originating from epidemic areas or contaminated by a contagious disease or deemed likely to transmit a contagious disease; 
 
(5) Other carry-on luggage shall be declared to the quarantine and inspection authority and be subject to quarantine.
 
2. The following objects are prohibited from entry: objects listed in Paragraph 1 of Article 5 of the Law of the People's Republic of China on the Quarantine of Inbound and Outbound Animals and Plants, in the Catalog of the People's Republic of China for Plants Prohibited from Entry, and in the Catalog of the People's Republic of China for Animals, Animal Products and Other Quarantine Objects Prohibited from Entry into China as Carry-on Luggage or Postal Parcels, and blood products, wastes and other objects expressly prohibited from entering China by the Chinese Government.
 
Source: Invest in China(中国投资指南网)