To obtain a special shaped vibration isolating bush without irregular deformation caused by drawing.

The hardware 11 of an inner cylinder of the vibration isolating bush which is vulcanized and formed is fit and mounted on the fitting part 22 of the inner cylinder of a calking stand and dies are made to coincide with the vibration isolating bush by collecting in the central direction. A die holder 40 is fit on the dies, the die holder is pressed against the dies and the hardware 12 of an outer cylinder is drawn. With the arcuate die pieces 32a, 32b of the dies, drawing is enabled without deforming the semicircular-arcuate wall parts of the hardware of the outer cylinder having the elliptic cross section in the perpendicular direction to the axis. And, the parallel die pieces 31a, 31b of the die are integrally abutted on the parallel wall part of the hardware of the outer cylinder and able to press this part, so drawing is enabled without irregularly deforming the parallel wall part whose rigidity is lower.