Ocean bill of lading or ocean bill of lading, referred to as B/L, is one of the most important documents in international settlement. The definition of bill of lading in Hamburg Rules is: bill of lading refers to the document that proves the contract of carriage by sea and the carrier's receipt or loading of goods, and the carrier promises to deliver the goods by virtue of this document. A clause in a document that stipulates that the goods shall be delivered in accordance with the instructions of the document. The document stipulates that the goods shall be delivered according to the instructions of the named person or by instructions or by others, which constitutes such an acceptance. Article 7 1 of People's Republic of China (PRC) Maritime Code (1993 July 1) stipulates: "The bill of lading refers to the certificate used to prove that the contract of carriage of goods by sea and the goods have been received or shipped by the carrier and kept by the carrier. The delivery of the goods to the named person, or the delivery of the goods according to the instructions, or the delivery of the goods to the holder of the bill of lading specified in the bill of lading constitutes the guarantee on which the carrier delivers the goods. " The main parties to the bill of lading are the two parties who sign the contract of carriage: the shipper and the carrier. The shipper is the cargo side and the carrier is the ship side. Other interested parties include the consignee and the notified party. The consignee is usually the buyer in the contract for the sale of goods. The bill of lading is handed over to the consignee by the carrier through the consignor, and the consignee takes the bill of lading to pick up the goods. The notified person is the notice object for the carrier to facilitate the cargo owner to take delivery of the goods, and may not be the party concerned with the cargo rights. If the bill of lading is transferred, there will be transferee, holder and other stakeholders of the bill of lading.