Disclosed is a folding table, which comprises table legs and support bars, the table legs are pivoted at the bottom portion of a table top, one end of the support bar is pivoted to the table leg, the other end of the support bar is disposed with a sliding hook, the sliding hook is slidable along the side edge of the table top in the table leg, the side edge of the table top is disposed with a lock groove with an opening; when the table leg is unfolded, the sliding hook is embedded in the lock groove; when the table leg is being folded, the external force is acted on the support bar to make the sliding hook separating from the lock groove and then the table leg is folded.