Negative ion health plate for purifying air and preparation method thereof

The invention relates to the technical field of plates, and discloses a negative ion health plate for purifying air, which comprises a base plate and surface layers, the surface layers are arranged on the upper and lower sides of the base plate, strip-shaped grooves are formed in the upper and lower sides of the base plate, mounting grooves are formed in the two sides of each strip-shaped groove, and negative ion plates are arranged in the mounting grooves. According to the invention, tourmaline and porous ceramic are mixed, and the contact area between tourmaline and air is increased through the porous ceramic, so that the negative ion release amount of tourmaline is increased, and when the plate is extruded, the negative ion block is pressed, so that the negative ion release amount of tourmaline is increased; the chemical fiber cloth strip and the chemical fiber sleeve generate displacement friction relative to the rubber rod and the elastic gasket to generate static electricity, the negative ion plate, the