Provided is a watch-type terminal (300) including: a main body (301) that includes an antenna module which transmits and receives a wireless signal in a predetermined frequency band; a band (302a, 302b) that extends from the main body (301) and that is formed in such a manner that the main body (301) is removably worn on a wrist; a ground portion (400) that includes first and second metal members (411, 412) that extend to have different lengths; a sensing unit (340) that detects whether or not the main body is worn on the wrist; and a controller (380) that grounds the antenna module to at least one of the first and second metal members (411, 412), based on whether or not the main body is worn on the wrist. It is therefore possible to reduce detuning effects due to the grounding effect of the user's wrist.