The endoscope inserted consecutively provided to a flexible tube portion having a flexible bendable bending portion, and a elongated continuously provided to the front end portion provided an imaging device for capturing an object image, the plurality of bending pieces grip portion provided in the insertion axis direction of the extension unit, an operation unit in an operation portion body having a longitudinal axis parallel to the longitudinal axis of the grip portion and disposed in the longitudinal axis direction of extension of the gripper and, a pair of puller members, provided in the operating insiders least Guided by operation insiders and extended from bending piece configuring the bending portion, bending the bending portion by a relative movement, an intermediate portion of the pulling member each a pulley arranged wound in the same direction, provided in the operation unit, a motor for rotating the pulling direction the pulley traction member is arranged wound, is projected from the operation portion main body, and tilt with respect to the operator main body and a mounting portion pair of puller members are fixed, respectively, at least an operator with possible shaft portion provided on the shaft portion of the operating element, guided in the operation portion, each other attachment portion in between the operator The frame has a lifting opposing, and a mounting member routing leading to the mounting portion of the pulling member a plurality of provided in the operation portion, is derived is wound around the pulley.内視鏡は、被写体像を撮像する撮像素子を設けた先端部、複数の湾曲駒を連設して湾曲自在な湾曲部、及び細長で可撓性を有する可撓管部を連設する挿入部の挿入軸延長線方向に設けられた把持部、及び把持部の長手軸延長線方向に設けられ当該把持部の長手軸に平行な長手軸を有する操作部本体を備えて構成される操作部と、湾曲部を構成する湾曲駒から延出されて操作部内に導かれ、相対的な移動により湾曲部を湾曲させる少なくとも一対の牽引部材と、操作部内に設けられ、牽引部材の中途部がそれぞれ同方向に巻回配置されるプーリーと、操作部に設けられ、牽引部材が巻回配置されたプーリーを牽引方向に回転させるモーターと、操作部本体から突設され、操作部本体に対して傾倒可能な軸部を有する操作子と、操作子の軸部に設けられ、操作部内に導かれた少なくとも一対の牽引部材がそれぞれ固設される取付部を備え、取付部が操作子を挟んで互いに対向する吊り枠と、操作部内に設けられ、プーリーに巻回されて導出された複数の牽引部材を取付部へ導く取付経路設定部
