Abstract: An earphone-integrated mobile terminal case includes: a first case configured to form a housing, in which a mobile terminal can be accommodated in the housing; a second case coupled to an opposite side of the housing of the first case, in which the second case is configured to include an aperture to expose an earphone speaker of an earphone to an outside; an earphone jack positioned in a location of the first case, in which the earphone jack can be coupled to an audio output port of the mobile terminal when the mobile terminal is accommodated in the housing of the first case in accordance with a design specification of the mobile terminal; and a winding roller configured to be included in an inside space formed by the first case and the second case, in which the winding roller is further configured to wind an earphone line of the earphone.