An endoscope in which an erecting operation mechanism is provided at an operation section and that can prevent an increase in size of a holding part of the operation section is provided. An endoscope according to the present invention includes an operation section 22 having an operation section main body 32, a holding part 34 connected to the operation section main body 32, and an extension part 36 extending from the holding part 34 toward a distal end side； an insertion section 24 provided on a distal end side of the extension part 36； an erecting base 30 provided at a distal end part 26 of the insertion section 24； a movable member 96 that is provided at the extension part 36 and that moves in association with an operation of an erecting operation lever 20； a wire 60 that is coupled to the erecting base 30 at a distal end side thereof, that is coupled to the movable member 96 at a proximal end side thereof, and that is pushed/pulled by the movable member 96； and an attachment member 98 that is provided at a proximal end of the wire 60 and that is engaged with the movable member 96 in an attachable/detachable manner by a one-touch operation.
