The present disclosure relates to a 5G or 6G communication system for supporting higher data transmission rates. The present disclosure relates to a method and apparatus for re-installing a profile when changing an eUICC terminal. A method performed by a first terminal in a wireless communication system supporting device changes comprises the steps of: transmitting, to a profile server, a device change request message for a device change for a profile of the first terminal; receiving, from the profile server, a device change request response message including a confirmation code requirement indicator for the device change; confirming, on the basis of the confirmation code requirement indicator for the device change, the reception of a confirmation code input; generating confirmation code hash information on the basis of the confirmation code; and transmitting, to the profile server, a device change confirmation message including the confirmation code hash information.