Digital display measuring scale for oral surgery

The invention relates to an apparatus for measuring the size of a mouth opening and the covering degree of teeth, and discloses a digital display measuring scale for oral surgery. The digital display measuring scale comprises a trapezoidal acrylic transparent base plate, a magnetic grating digital displayer and a carbon fiber composite magnetic plate, wherein an inclined angle between the upper bottom edge and bevel edge of the trapezoidal acrylic transparent base plate is 60 degrees, the magnetic grating digital displayer is fixedly arranged at one end of the upper bottom edge of the trapezoidal acrylic transparent base plate, the carbon fiber composite magnetic plate penetrates through the magnetic grating digital displayer and is arranged in a chute of the upper bottom edge of the trapezoidal acrylic transparent base plate, and the carbon fiber composite magnetic plate can slide on the chute. The digital display measuring scale is convenient to operate, easy to carry, multifunctional, high in accuracy, high in material strength, non-toxic, easy to produce and machine, and low in cost.