The endoscope includes an insertion portion and an operation portion that is provided on the proximal end side of the insertion portion and includes a first exterior body and a second exterior body that can be attached and detached, and extends from the bending portion. A plurality of bending wires that are taken out and introduced into the operation unit internal space of the operation unit, a fluid tube that is extended from the tip and introduced into the operation unit internal space of the operation unit, a light guide fiber bundle, and a signal cable； A dividing plate member that divides the operation unit internal space of the operation unit into a first space in which a plurality of bending wires are inserted and a second space in which the fluid tube, the light guide fiber bundle, and the signal cable are inserted and arranged. A fluid tube having a predetermined elastic force, attachable to and detachable from a predetermined position of the dividing plate member, and extending from the insertion portion toward the second space when attached to the dividing plate member, and a light guide Comprising Aiba bundle, and an endoscope internals position regulating member for regulating the respective insertion state of the signal cable in a predetermined state, the内視鏡は、挿入部と、挿入部の基端側に設けられ、取付け及び取外しが可能な第１外装体及び第２外装体を備えて構成された操作部とを備え、湾曲部から延出されて操作部の操作部内部空間に導入される複数の湾曲ワイヤーと、先端部から延出されて操作部の操作部内部空間に導入される流体チューブ、ライトガイドファイバー束、及び信号ケーブルと、操作部の操作部内部空間を、複数の湾曲ワイヤーが挿通配置される第１空間、及び流体チューブ、ライトガイドファイバー束、及び信号ケーブルが挿通配置される第２空間に分割する分割板部材と、予め定めた弾性力を有し、分割板部材の予め定めた位置に取付け取外し可能で、分割板部材に取り付けた状態において、挿入部から延出されて第２空間に向かう流体チューブ、ライトガイドファイバー束、及び信号ケーブルの各挿通状態を予め定めた状態に規制する内視鏡内蔵物位置規制部材と、を具備する
