There is provided a slide hinge device for guiding a slide of a slide part on a main part. The slide hinge device includes: a slide hinge unit installed in the rear of the slide part, for guiding a slide of the slide part; a fixed hinge unit installed in the front of the main part; and a lift hinge unit rotatably installed to the fixed hinge unit and engaged with the slide hinge unit to guide a slide of the slide hinge unit. In the case the slide part is opened, the lift hinge unit rotates to the fixed hinge unit and raises the slide part to be slanted towards the main part, thereby enabling a microphone and a receiver of a personal portable device to be close to the mouth and an ear of a user, respectively.