The invention discloses a mesh plate leveling method, which is characterized by comprising the following steps of: (1) flatly putting a mesh plate to be leveled on a working platform by using a common platform spot welder as a working surface; (2) putting a pressing plate with good heat conduction above a workpiece; (3) pressing the pressing plate by using a spot welding head of the spot welder; and (4) adjusting the power and pressure of the spot welder, and pressing down the spot welding head of the spot welder to level the mesh plate. The structure is simple, and the method is convenient to use; in the leveling process, the temperature and pressure are set by the spot welder; and the temperature is kept unchanged in the whole process, and a film on the surface of the mesh plate cannot be damaged due to local overhigh temperature.