To provide an air / water supply valve for an endoscope and an endoscope capable of preventing peeling of the seal member from the shaft by forward and backward movements.SOLUTION: The endoscope air / water supply valve for controlling air supply and water supply by switching connection modes of a plurality of pipelines formed in an endoscope releases gas flowing through a conduit to the outside A cap having a leak hole formed therein, and a shaft portion having one end connected to the cap and extending in a rod shape, wherein the shaft portion has a hole portion forming a hollow space and a hole portion extending in a longitudinal direction of the shaft portion A protrusion protruding from an outer surface of the main body through a communicating hole, and a protruding portion which is provided in the hole and extends in a direction intersecting the hole , And a seal member having a support portion for supporting the protruding portion.(FIG.【課題】、進退動作によるシール部材の軸からの剥離を防止することができる内視鏡用送気送水弁及び内視鏡を提供すること。【解決手段】内視鏡に形成された複数の管路の接続態様を切り替えて送気及び送水を制御する内視鏡用送気送水弁において、管路を介して流通する気体を外部に放出可能なリーク孔が形成されたキャップと、一端がキャップに接続し、棒状をなして延びる軸部と、を備え、軸部は、中空空間を形成する孔部、及び、当該軸部の長手方向と交差する方向に延び、孔部と外部との間を連通する連通孔が形成された本体部と、連通孔を介して本体部の外表面から突出する突出部、及び、孔部に設けられ、突出部を支持する支持部を有するシール部材と、を有する。【選択図】図5
