This endoscope apparatus includes: an insertion portion a bending portion an operation portion and a pull member. The operation portion includes: an operation lever a bearing that supports the operation lever in a state of being freely inclinable around a swinging center a friction member that is fixed to the operation lever a press portion configured to contact a contact surface and a switching device that is connected to the press portion and presses the press portion against the contact surface when rotated in a first rotational direction with a predetermined rotation axis as a rotation center thereof and also so as to cause the press portion to be spaced away from the contact surface when rotated in a second direction.