A method and an electronic device for network search. The network search method in an electronic device includes scanning a frequency band corresponding to a first communication system to search for a first Public Land Mobile Network (PLMN); when discovering a second PLMN as a result of the scanning, determining whether a frequency band of the second PLMN and a frequency band of a second communication system overlap each other; and when the frequency band of the second PLMN and the frequency band of the second communication system overlap each other, scanning the other frequency band excluding the overlapping frequency band in the entire frequency band corresponding to the second communication system to search for the first PLMN.