A portable computer includes a base, a display module, at least one support element and at least one sliding assembly. The base includes a first area and a second area. The display module includes a connect end and a display face. Each support element comprises a first end pivoted on a portion of the display module other than the display face and a second end pivoted on the rear end of the base. Each sliding assembly includes a rod element disposed at least in the second area and a sleeve sliding element connected with the connect end and moved along the rod element.