A dual hinge apparatus for a portable terminal provides a pair of hinge axes perpendicular to each other and connects first and second housings that form the portable terminal to each other such that they can rotate relative to the first and second hinge axes, respectively. The hinge apparatus includes a fixed housing, a rotating housing coupled opposite to the fixed housing to rotate relative to the second hinge axis, and a hinge housing coupled to a side surface of the rotating housing to provide the first hinge axis. Such a hinge apparatus couples the pair of housings to each other such that they can be positioned laterally side by side with each other. Thus, a display unit can lie transversely and lengthwise, which is convenient for using multimedia services. Using the disclosed hinge apparatus, it is easy to construct various types of information terminals.