The present invention relates to a folding table and is intended to improve the ease of use of the table by enabling the folding and unfolding operation of the support legs to be performed more quickly and easily. In order to realize this, the present invention provides a folding table in which the support legs 20 are foldably formed on both side bottom surfaces of the tabletop plate 10, and a support member 30 for supporting the unfolded state is connected to the support legs 20. A guide panel 40 for guiding the movement of the support member 30 is fixed to the bottom surface of the tabletop plate 10 and guide grooves 41 are formed on both side walls of the guide panel 40. A guide rod 31, which is guided along the guide grooves 41, is integrally formed at one end of the support member 30. A rotary plate 50 is rotatably connected to the guide panel 40 by a hinge 52 formed at one end thereof, and the rotary plate 50 has an engaging jaw 51 so that the guide rod 31 can be hooked thereto. The guide panel 40 is provided with an elastic spring 53 for supporting the rotary plate 50 with a certain elastic force.