An ultrasound endoscope includes: an insertion portion provided with a housing portion 34 on a distal end side an ultrasound transmitting/receiving portion provided in the housing portion 34 and configured to transmit and receive ultrasound to and from the observation site a cable 41 configured to transmit electric signals inputted to and outputted from the ultrasound transmitting/receiving portion an inserting portion 36 configured to cause the cable 41 to extend from an inside of the housing portion 34 and a fitted member 37 fitted on an outer face 36g of an outer peripheral side potion of the inserting portion 36 so as to cover at least a part of the outer face 36g along an extension direction E.