A foldable frame includes two U-shaped tabletop supports mounted underneath two table panels respectively, two folding hinges spacedly mounted between the two tabletop supports to pivotally connect the two tabletop supports with each other such that the tabletop is adapted to fold between a folded position that the two table panels are overlappedly folded with each other and an unfolded position that the two table panels are aligned edge-to-edge, and two leg frames foldably connected with the tabletop supports respectively. As a result, the foldable frame is capable of not only supporting the tabletop but also folding the tabletop in half so as to reduce the size of the foldable table.