Provided is an ultrasonic endoscope capable of improving the cleanability of the periphery of a stand. An ultrasonic transducer 50 having an ultrasonic transducer, a distal end main body 36 connected to the proximal end side of the ultrasonic transducer 50, and a first perpendicular to the axial direction of the distal end main body 36 provided in the distal end main body 36. An upright stand accommodating portion 62 having an opening 58 having one side in one direction as an opening direction, a treatment instrument outlet 80 communicating with the inside of the upright stand accommodating portion 62, and a treatment instrument being led out, and an upright stand accommodating portion 62 is provided on the wall surface opposite to the side where the opening 58 of the stand support part 62 is disposed, and the stand 60 that changes the direction in which the treatment tool is led out from the treatment tool lead-out port 80. The ultrasonic endoscope 1 includes a cleaning communication hole 84 that is provided and communicates with the outside.起立台周辺部の洗浄性を向上させることができる超音波内視鏡を提供する。超音波振動子を有する超音波トランスデューサ５０と、超音波トランスデューサ５０の基端側に連設された先端部本体３６と、先端部本体３６に設けられ、先端部本体３６の軸線方向に垂直な第１方向の一方側を開口方向とする開口部５８を有する起立台収容部６２と、起立台収容部６２の内部に連通し、処置具が導出される処置具導出口８０と、起立台収容部６２の内部に設けられ、処置具導出口８０から導出された処置具の導出方向を変更する起立台６０と、起立台収容部６２の開口部５８が配置される側とは反対側の壁面に設けられ外部と連通する洗浄用連通孔８４と、を備える超音波内視鏡１である。
