The present invention provides an ultrasonic endoscope in which the position of an ultrasonic oscillator can be easily adjusted with respect to a surgical-tool guide opening provided to a leading end part body of an insertion unit, and a method of manufacturing the ultrasonic endoscope. According to the present invention, an ultrasonic oscillator can be positioned with respect to and temporarily fixed to an ultrasonic-oscillator housing part by using spacers and or protrusions. With this configuration, in an ultrasonic endoscope according to the present invention, the position of the ultrasonic oscillator can be adjusted with respect to the ultrasonic-oscillator housing part by using the spacers or the protrusions. Accordingly, the position of the ultrasonic oscillator can be adjusted with respect to a surgical-tool guide opening provided to a distal end part body of an insertion unit.
