The invention relates to the field of the drawing of reinforcing steel bars, and provides a method for generating a two-dimensional reinforcing steel bar type drawing from three-dimensional reinforcing steel bars. For a three-dimensional reinforcing steel bar model which is obtained after concrete structure reinforcing steel bar arrangement design is finished, the reinforcing steel bar type drawing can be automatically generated when a reinforcing steel bar detailed statement is generated. The method comprises the following steps in summary: obtaining a curve assembly point set from the three-dimensional reinforcing steel bars; establishing a local plane-coordinate system; calculating scaling; drawing the reinforcing steel bar type drawing in the plane-coordinate system; and drawing a type drawing annotation. The method is suitable for manufacturing a bending schedule.