A mobile terminal comprises: a case having an electric mounting portion with electronic components installed therein and having an ear jack holder part on the outer surface thereof; and ear jack connected to the ear jack holder part and having a plug hole into which a connecting plug is inserted; a plurality of first terminals equipped inside the plug hole; a second terminal connected to the first terminal and exposed to the outside of the ear jack; an antenna carrier connected to the back side of the case and having an antenna pattern formed on the surface thereof; and an ear jack electrode pattern formed in the antenna carrier, one end thereof being connected to the second terminal, wherein the mobile terminal has an ear jack structure outside the case, and thereby can prevent water from flowing into the mobile terminal through the ear jack.