A foldable table includes a tabletop made of U-PVC material with a solid structure, a table reinforcing frame, and two leg frames. The table reinforcing frame is encirclingly mounted at a peripheral edge of the tabletop for forming an edge protector of the tabletop and for evenly distributing and supporting a downward loading force on the tabletop. The two leg frames are foldably supported at the bottom side of the tabletop to fold between an unfolded position and a fold position. Each leg frame includes a folding leg pivotally coupled with the table reinforcing frame and a folding frame pivotally extended from the bottom side of the tabletop to the folding leg. At the unfolded position, the folding leg is pivotally and outwardly folded to downwardly extend from the tabletop. At the folded position, the folding leg is pivotally and inwardly folded to rest under the tabletop.