The present disclosure relates to a method and a device for installing a profile of an embedded universal integrated circuit boards (eUICC) and, more particularly, to a method and a device for remotely installing mobile communication subscriber information (profile) substituting for a universal integrated circuit boards (UICC), on a security module. In an aspect, a network device, acquires at least one of or more profiles encrypted with a first password key and one or more first password keys encrypted with a second password key; and when profile installation for the eUICC starts, transmits to, at least one eUICC, the one or more encrypted profiles and the one or more encrypted first password keys, wherein, prior to the transmission, each first password key is re-encrypted with a third password key for installation by the corresponding one or more eUICCs.