An endoscope includes stays extending inside an operation section along a direction of a longitudinal axis, and a suction pipeline fixed to the operation section at a distal end side and a proximal end side so as to extend inside the operation section, along the stays and in the direction of the longitudinal axis, where an inside of the operation section is partitioned into a first space portion and a second space portion by the stays and the suction pipeline, each angle wire is disposed inside the first space portion, and long internal components, such as a signal cable and a light guide, are disposed inside the second space portion.