The endoscope operation portion 3 includes an operation portion main body 14 connected to the grip portion 13, a joystick type main body 14 provided on the back side of the operation portion main body 14 and having a lever shaft member 27 to bend the bending portion 7 The angle formed by the operation axis B in the pushing operation direction with respect to the central axis A of the lever shaft body 27 is obtuse and the intersecting point P between the center axis A and the operation axis B is within the operation section main body 14 And a suction button 24 provided on the front side of the operation portion main body 14 so as to be positioned on the operation portion main body 14.内視鏡操作部3は、把持部13に連設された操作部本体14と、操作部本体14の背面側に設けられ、レバー軸体27を有して湾曲部7を湾曲操作するジョイスティック型の湾曲操作レバー21と、レバー軸体27の中心軸Aに対して押し込み操作方向の操作軸Bのなす角が鈍角であって、中心軸Aと操作軸Bの交点Pが操作部本体14内に位置するように操作部本体14の正面側に設けられた吸引ボタン24と、を具備する。
