The present invention provides a method for transmitting and receiving data by a first node in a Bluetooth mesh network. The first node establishes a first specific relationship with a first relay node, transmits, to the first relay node, a first message including a network address of a second relay node that has established a second specific relationship with the first node before the first specific relationship is established, and receives at least one message stored in the second relay node from the first relay node in an active state.