Provided are an electronic device for acquiring biometric information by using an electrode selected from electrodes of a biometric sensor, and a method for controlling same. An electronic device according to various embodiments of the present document may comprise: a biometric sensor including a plurality of electrodes for acquiring biometric information; and a processor electrically connected to the biometric sensor, wherein the processor is configured to determine whether an event related to acquiring of the biometric information occurs, select certain electrodes from the plurality of electrodes to acquire the biometric information, in response to occurrence of the event, and acquire the biometric information by using the selected electrodes.