To properly form a fold in a fabric or attach an interlining cloth to the fabric while well ensuring designed surface properties by raising while applying a pressure and heat to the fabric prepared from thermoplastic synthetic resin fibers into a mode having surface properties of raising.

A fold 3 is formed in a fabric 1 while applying a pressure and heat to the fabric 1 by heating a first and a second elements 11 and 12 and pins 13 and 14 at a prescribed temperature, alternately thrusting the pins 13 and 14 in a bent part of the fabric 1 inserted and arranged in a gap 17, inserting the bent part into the gap 17 so as to locate the naps 2 of the fabric 1 on the sides of the first and second elements 11 and 12. A bonding interlining cloth is superimposed on the back surface of the turned fabric 1 and both kept in this state are then inserted into the gap 17 to thereby attach the fabric 1 to the bonding interlining cloth while applying the pressure and heat thereto.