The utility model discloses a foldable table, which relates to the technical field of furniture and comprises a main table board, an auxiliary table board is arranged on the right side of the main table board, connecting grooves are arranged on the front side and the rear side of the right end of the main table board, connecting legs are rotatably connected to the inner surfaces of the connecting grooves, and the right ends of the connecting legs are fixedly connected with the auxiliary table board. The left side of the lower surface of the main table board is fixedly provided with an inserting plate, the surface of the inserting plate is provided with a through cavity, the right side of the surface of the auxiliary table board is provided with a positioning mechanism, the positioning mechanism comprises an inserting groove formed in the right side of the lower surface of the auxiliary table board, and the middle of the surface of the right side of the auxiliary table board is fixedly connected with a spring. And one end of the spring is fixedly connected with a positioning rod. Compared with an existing common foldable table, the foldable table has the advantages that the whole table can be folded, the table can be locked after being folded, the table cannot be unfolded at will, and the folded table is smaller in size and more convenient to carry.