A slide type mobile terminal according to an aspect of the invention comprises: a main body having buttons and a slide part having a display, wherein the buttons comprise at least one open button that is open to the exterior and at least one hidden button that is not open to the exterior when the slide part is opened with respect to the main body, the slide part comprises at least one push protrusion corresponding with at least the hidden button, and the main body and the slide part are joined by a connection means which allows sliding of the slide part with respect to the main body. With such a composition, the invention allows for a larger display on the slide part and provides a slide type mobile terminal which can have various functional buttons.