The utility model provides a foldable tea table comprising a rack, a fixed table surface and two revolving table surfaces. The fixed table surface is fixedly arranged on a horizontal plane of the rack; and the two revolving table surfaces are respectively connected to two sides of the fixed table surface via a stainless steel damping hinge. With the two revolving table surfaces respectively on two sides of the fixed table surface via the stainless steel damping hinge, the two revolving table surfaces can be revolved or flattened as needed, so narrow space between a train tea table and a seat is effectively enlarged, thereby providing convenience for a passenger and improving practicality of the foldable tea table.