PURPOSE: To continuously cut and form a specific cutting line on a material without causing stretches, cuts, kinks or sag by the tensile force by providing a cutting member feeding means for feeding members to be cut with a material superposed on a base material from the upper part to the lower part.

CONSTITUTION: A cutting member 16 composed by superposing a soft material 12 stretchable by tensile force on a hard base material 14 impeding stretch by resisting tensile force is fed to a cutting line forming means 6 from the upper part to the lower part by a feeding means 4. A continuous cutting line in a required shape is formed on the cutting member 16 by repeatedly forming a basic shape cutting line on it with the cutting liner forming means 6, after which useless portion of the cutting member 16 formed with the required shape cutting line is removed by a removing means 8 leaving the necessary portion. The cutting member 16 having its useless portion removed by leaving the necessary portion is then is separated to the material 12 and the base material 14 and separately wound by a material winding unit 72 and a base material winding unit 74 of a winding means 10.