Provided is an ultrasound fracture detection device capable of accurately irradiating an ultrasound pulse to a target object, the device being characterized by being provided with an ultrasound wave irradiating transducer, a signal receiving transducer which receives a reflected wave of an ultrasound wave irradiated from the ultrasound wave irradiating transducer, a signal, storage unit which stores a received signal, and a display unit which displays an analysis program that analyzes a stored signal, a determination program that performs determination from the result of the analysis and/or performs determination from the stored signal, and the result of the analysis and/or the result of the determination, wherein the determination program performs the determination using that information relating to the received signal varies depending on the reflector within a living organism.