Provided is a method for forwarding a packet, which includes that: when a matched network address port group translation entry is found according to a source Internet Protocol (IP) address and a source port number of a received packet, or according to a target IP address and a target port number of the received packet, the packet is translated according to the network address port group translation entry and then sent out. Also provided is a device for forwarding a packet. By adopting the solution, memory resources occupied by static configuration Network Address Port Translation (NAPT) rules and entries can be reduced, maintenance can be facilitated, and configurations can be reduced effectively.