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.