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