The endoscope insertion portion 2 includes a first bending portion 7 a disposed on the distal end side and a bending rigidity connected to the proximal end of the first bending portion 7 a and higher than that of the first bending portion 7 a The second bending portion 7 b and the first tubular portion 40 a on the distal end side disposed in the first bending portion 7 a are curved and bent in a predetermined direction and the shape is stored and the second bending portion A tubular member 40 having a second tubular portion 40b on the proximal end side disposed in the first tubular portion 7a and a first tubular member 40 movable in the first tubular portion 40a and independently curving only the first curved portion A wire 44 and second wires 47, 48 which can move the second tubular portion 40 b and independently bend only the second bending portion 7 b.内視鏡挿入部2は、先端側に配設された第1の湾曲部7aと、第1の湾曲部7aの基端に連設され、第1の湾曲部7aよりも高い曲げ剛性を備えた第2の湾曲部7bと、第1の湾曲部7a内に配設される先端側の第1の管状部位40aが所定の方向に曲がり癖が付けられて形状記憶され、第2の湾曲部7b内に配設される基端側の第2の管状部位40bを備えた管状部材40と、第1の管状部位40aを可動し、第1の湾曲部のみを独立して湾曲する第1のワイヤ44と、第2の管状部40bを可動し、第2の湾曲部7bのみを独立して湾曲する第2のワイヤ47,48と、を具備する。
