An attachment for ultrasound probe, an ultrasound probe, an ultrasound inspecting apparatus, and an ultrasound inspecting method are provided. The attachment for ultrasound probe includes an acoustic matching element provided on a transceiver of an ultrasound probe and deformed based on a surface of an inspection target when the ultrasound probe scans the surface of the inspection target; a medium supplier provided near the acoustic matching element and configured to provide a medium between the inspection target and the acoustic matching element, based on the deformation of the acoustic matching element; and a body configured to fix the acoustic matching element and the medium supplier to the ultrasound probe.