A folder type mobile communication terminal includes a first housing and a second housing hingedly connected to the first housing. The second housing includes a second knuckle on the rotation axis where the second knuckle defines an opening hole inside thereof for insertion of a connection cable, a second hinge aperture formed in the axial direction of the rotation axis to allow the connection cable to insert therethrough, a projecting part at one end, and a structure at the opposite end which allows installation of a hinge spring assembly. The first housing includes first knuckles formed at both ends, where the first knuckles define a first hinge aperture that is directed to the direction of the second hinge aperture, and a first slot formed in the bottom of one of the first knuckles to enable the connection cable to insert therethrough.