A portable terminal case having a skin condition-measuring function is disclosed. The case includes a battery case; a bumper case coupled to the battery case; a moisture measurement unit for receiving moisture level information in the skin of a user from a moisture measurement sensor; a contact detection unit for receiving information on the presence or absence of a contact between the bumper case and the skin from a contact detection sensor; an environment measurement unit for receiving surrounding environment information from an environment information measurement sensor; and a control unit for collecting the moisture content and the environment information from the moisture measurement unit and the environment measurement unit.