PURPOSE: A fixing apparatus for a probe is provided to improve the reliability of an ultrasonic image by transferring a probe along an target object at a fixed angle. CONSTITUTION: A fixing apparatus for a probe(1) includes a probe(50) and a probe mounting member(10). The probe is arranged in the probe mounting member. The probe maintains the fixed angle. The probe mounting member includes an insertion part(12) and a mounting part(60). The probe is attachably and detachably inserted into the insertion part. The mounting part is arranged by contacting with the insertion part.