The utility model provides a cutting device of epaulet dough sheet, by the power, the hot knife, hot knife aggregate unit, the guide rail template, the scale template, the steel sheet spacer is constituteed, the hot knife need cut the shape design preparation according to the epaulet, hot knife aggregate unit installs in taking preface equipment absolutely for present, the guide rail template, the steel sheet spacer is the metal sheet, the scale template is transparent organic glass board, on have a scale sign, the guide rail template is adorned admittedly on the operation mesa, admittedly, adorn steel sheet spacer and scale template in the guide rail template in proper order, make a guide rail template and scale template intermediate formation guide rail, the guide rail is put into in good epaulet area will to cover the pressure, the artifical propulsion is placed, it compares scale to suitable position to see through the scale template, step on the cutter, the hot knife cuts, continue manual propulsion epaulet area after having cut out, it cuts and goes on in proper order to compare the scale.