Carrier delivery of cargo without B/ L refers to the behavior that the carrier does not deliver goods by original B/L. The author analyses the superposition of the two kinds of nature of the behavior——the breach of contract and the tort, as well as, from which, constitutes concurrence of liability of the carrier. Under most conditions, the carrier should undertake the liability, although he can put forward many seemingly reasonable excuses. While in some cases, special legal facts can deprive the bearer of some rights, which means the liability to the carrier should be exempted for some causes.