Provided is a portable terminal including a first housing, a second housing, and a hinge apparatus rotatably coupling the first housing and the second housing. The hinge apparatus includes a hinge housing fixed to the first housing, a hinge member fixed to the second housing and coupled to the hinge housing, the hinge member rotating around a hinge axis which extends perpendicular to a surface of the first housing, an interference protrusion provided on one of the hinge housing and the hinge member, and a stopper groove formed in the other of the hinge housing and the hinge member wherein the hinge member rotates around the hinge axis while being spaced apart from the hinge housing.