In an endoscope bending tube provided in a bending portion of an endoscope in which a first bending tube region 21a and a second bending tube region 21b having mutually different bending characteristics are arranged from a distal end side to a proximal end side of a bending portion 21, a slit width w1 of a plurality of bending slits 24 arranged in the bending tube region 21a is set to be smaller than a slit width w2 of a plurality of bending slits 25 arranged in the bending tube region 21b, a width of the bending slits on the distal end side between the neighboring bending slits is set to be smaller than a width of the slits on the proximal end side, and an interval between the neighboring bending slits of a slit row in the bending region located on the distal end side is set to be smaller than an interval between the neighboring bending slits of the slit row in the bending region located on the proximal end side.
