A foldable table includes a first tabletop panel, a second tabletop panel, and a reinforcing frame which includes first through fourth reinforcing members mounted along longitudinal sides of the first and second tabletop panels respectively, a first transverse member transversely extended between outer end portions of the first and second reinforcing members at the first tabletop panel, and a second transverse member transversely extended between outer end portions of the third and fourth reinforcing members at the second tabletop panel. Two ends of the first transverse member are affixed to the first and second reinforcing members in a non-rotatably movable manner. Two ends of the second transverse member are affixed to the third and fourth reinforcing members in a non-rotatably movable manner. Therefore, the first and second transverse members enhance the rigidity of the reinforcement frame to support two transverse sides of the first and second tabletop panels respectively.