The present invention relates to a method and device for setting the role of a device in a Bluetooth mesh network. According to the present invention, a method and device are provided which: receive a write request message including settings information for setting the role of a first device from a control device; transmit a response message as a response to the write request; transmit an advertising message including role information set by the settings information to a second device; and transmit a first message including first information on the first device to the second device.