The endoscope 1 includes a bending drive pulling member 14 which is connected to the bending portion 3 and inserted through the insertion portion 2 and a bending operation for bending the entire bending portion 3 by towing and relaxing the bending drive pulling member 14 22, and 23, a first bending fixing towing member 15 connected to the bending portion 3 and inserted through the insertion portion 2, and a first bending fixing pulling member 15 are pulled and loosened to bend A first bending fixing operating portion 6a for operating the fixing or releasing of the entire portion 3, a second bending fixing towing member 16 connected to the bending portion 3 and inserted through the inserting portion 2, And a second bending fixed operation part 6 b for operating the fixation or release of a part of the bending part 3 by pulling and loosening the bending and fixing towing member 16.内視鏡1は、湾曲部3に接続され、挿入部2に挿通された湾曲駆動用牽引部材14と、湾曲駆動用牽引部材14を牽引弛緩操作して湾曲部3の全体を湾曲操作する湾曲操作部5,22,23と、湾曲部3に接続され、挿入部2に挿通された第1の湾曲固定用牽引部材15と、第1の湾曲固定用牽引部材15を牽引弛緩操作して湾曲部3の全体の固定または解除を操作する第1の湾曲固定用操作部6aと、湾曲部3に接続され、挿入部2に挿通された第2の湾曲固定用牽引部材16と、第2の湾曲固定用牽引部材16を牽引弛緩操作して湾曲部3の一部の固定または解除を操作する第2の湾曲固定操用作部6bと、備えている。
