Various embodiments of the present invention relate to an electronic device for setting up a network of an external device by using a voice input and a method for operating the same. An electronic device according to various embodiments of the present invention comprises: a network interface; a wireless communication circuit configured to provide at least one wireless network; a processor operatively connected to the network interface and to the wireless communication circuit; and a memory operatively connected to the processor. The memory is configured to store a selected SSID and at least one piece of user account information. The memory may store instructions that, when executed, cause the processor to receive the selected SSID from a first external device comprising a speaker and a microphone through the wireless communication circuit; to receive first device information of the first external device from the first external device through the wireless communication circuit; to connect the first external device to the wireless network at least temporarily; to transmit the first device information and the user account information to an external server through the network interface; to receive first data including information regarding a setup utterance related to the user account information from the external server through the network interface; and to transmit at least a part of the first data to the first external device through the wireless communication circuit. Various other embodiments are also possible.