In a forceps 1 of the present invention, an operating section 12 is provided with a main body 12 and a pair of slider sections 13 which advance and retract an operating wire 11 by relative closing-and-departing motions thereof; the slider section 13 is provided with a thumb hole section 16 to which a thumb is engaged to operate the operating section 12; the main body 12 is provided with a second finger-receiving section 21 having a sandwiched section 21a to be sandwiched between a first finger and a second finger and thereby being engaged with the first finger and the second finger; and when an operating duct section 6 is inserted within a forceps channel, a distance from the second finger-receiving section 21 to a forceps opening is longer than a distance from a thumb hole section 16 to the forceps opening.