PROBLEM TO BE SOLVED: To provide an endoscope allowing reduction of a diameter, and allowing reduction of a load acting on a treatment tool-inserting tube even by bending of a bend part.SOLUTION: This endoscope 1 includes: an insertion part 30 including the bend part 32 having a plurality of joint rings 321 turnably connected to each other and bent to one direction by a bending operation wherein a wire 211 bridged over the joint rings 321 is drawn and the treatment tool-inserting tube 24 passing inside the respective joint rings 321 and included in the insertion part 30. The treatment tool-inserting tube 24 is fixed to a portion on the bend outer circumferential side in each joint ring 321.
