Method and apparatus of automatically marking fracture surface position

The invention discloses a method and apparatus of automatically marking a fracture surface position and belongs to the field of engineering design. The method comprises steps of acquiring a fracture surface of a current piece of drawing paper according to a marking instruction input by a user, determining a section line of a drawing target corresponding to the fracture surface according to the fracture surface, respectively acquiring information of the position of the fracture surface on the current drawing paper and information of a position of the section line on the drawing paper, marking the position information of the fracture surface on the current drawing paper to the section line, and marking the position information of the section line on the current drawing paper to the fracture surface. The fracture surface is the fracture surface of the drawing target. By the use of the method, efficiency of marking fracture surface position on the drawing paper can be improved; and marking error rate can be reduc