Through the actual operation of shipping agency in issuing Bill of Lading and releasing cargoes without original Bill of lading, the author analyzed the legal status of shipping agency.

• 通过船代在班轮运输中签发提单、无单放货及预借、倒签提单中的实务操作来分析船代涉及提单这一重要运输凭证的法律地位及责任。