Customs declaration is one of the necessary links to fulfill the customs entry and exit procedures. Customs declaration refers to the consignee or consignor of import and export goods, the person in charge of inbound and outbound means of transportation, the owner of inbound and outbound goods or their agents to the Customs for the entry and exit of goods, articles or means of transportation and the process of related customs affairs, including the declaration to the Customs, the submission of documents and papers and acceptance of the Customs supervision and inspection and so on.