An endoscope insertion portion 2 includes: a first bending portion 7a disposed on a distal end side； a second bending portion 7b connected to a proximal end of the first bending portion 7a and provided with flexural rigidity higher than flexural rigidity of the first bending portion 7a； a tubular member 40, a first tubular part 40a of which on a distal end side disposed inside the first bending portion 7a has a bending tendency in a predetermined direction and shape-memorized, and which is provided with a second tubular part 40b on a proximal end side disposed inside the second bending portion 7b； a first wire 44 configured to move the first tubular part 40a and independently bend only the first bending portion； and second wires 47 and 48 configured to move the second tubular part 40b and independently bend only the second bending portion 7b.
