A glass type terminal comprising: an eyeglass frame fixed to a user's head part; an optical device detachably attached to the eyeglass frame and having a body unit in which a display unit is installed; and a clip module configured to detachably connect the optical device to the frame, wherein when the display unit is fixed to the frame, the display unit is disposed to be adjacent to the user's eye so as to provide visual information; wherein the frame further includes a main circuit board configured to control an electrical signal, and the clip module includes: an assembling protrusion having a first region protruding from one surface of the body unit and a second region extending from the first region in a direction in which the body unit extends, so as to be spaced apart from the body unit; an assembling recess that includes a recess region corresponding to the first and second regions (721a, 721b) and an internal space in which the second region is inserted with a rotation of the body unit; and a connection terminal unit disposed to be adjacent to the assembling protrusion and the assembling recess; a first connection terminal formed on an outer surface of the second region; a second connection terminal extending from the main circuit board and disposed in the internal space, and wherein a thickness of the first region is greater than that of the second region, and wherein an internal space formed to have a fan shape allowing the second region to rotate therein. an eyeglass frame fixed to a user's head part; an optical device detachably attached to the eyeglass frame and having a body unit in which a display unit is installed; and a clip module configured to detachably connect the optical device to the frame, wherein when the display unit is fixed to the frame, the display unit is disposed to be adjacent to the user's eye so as to provide visual information; wherein the frame further includes a main circuit board configured to control an electrical signal, and the clip module includes: an assembling protrusion having a first region protruding from one surface of the body unit and a second region extending from the first region in a direction in which the body unit extends, so as to be spaced apart from the body unit; an assembling recess that includes a recess region corresponding to the first and second regions (721a, 721b) and an internal space in which the second region is inserted with a rotation of the body unit; and a connection terminal unit disposed to be adjacent to the assembling protrusion and the assembling recess; a first connection terminal formed on an outer surface of the second region; a second connection terminal extending from the main circuit board and disposed in the internal space, and wherein a thickness of the first region is greater than that of the second region, and wherein an internal space formed to have a fan shape allowing the second region to rotate therein. an assembling protrusion having a first region protruding from one surface of the body unit and a second region extending from the first region in a direction in which the body unit extends, so as to be spaced apart from the body unit; an assembling recess that includes a recess region corresponding to the first and second regions (721a, 721b) and an internal space in which the second region is inserted with a rotation of the body unit; and a connection terminal unit disposed to be adjacent to the assembling protrusion and the assembling recess; a first connection terminal formed on an outer surface of the second region; a second connection terminal extending from the main circuit board and disposed in the internal space, and wherein a thickness of the first region is greater than that of the second region, and wherein an internal space formed to have a fan shape allowing the second region to rotate therein.