Conical surface marking method and device and computer readable storage medium

The invention discloses a conical surface marking method and device and a computer readable storage medium. The method comprises the steps of obtaining a midpoint conical surface coordinate value of a to-be-marked graph; according to the midpoint conical surface coordinate value and a preset algorithm, calculating a conical surface coordinate value of each contour point of the to-be-marked graph; calculating a height correction value corresponding to each contour point according to the conical surface coordinate value of each contour point; and converting the conical surface coordinate value of each contour point and the height correction value into a corresponding control signal, and driving a galvanometer to move to the corresponding conical surface coordinate point through the control signal. Plane coordinates of the to-be-marked graph are converted into the conical surface coordinates through a conical surface wrapping algorithm, the height of each galvanometer is determined according to the converted con