Provided is an artificial heart device (10) which can contribute to the enhancement of quality of life of patients and the reliability of the artificial heart device (10). The artificial heart device (10) includes: a blood pump (20) which assists flow of blood in a heart； a blood pump control part (100) which controls the blood pump (20)； a first data processing part (142) which performs first data processing on at least one data in a first period out of operation data on the blood pump (20), operation data on a cool sealing unit which circulates lubrication fluid in the blood pump (20), biological data corresponding to a state of a patient and operation data on a battery； and a TR data storing (162) part which stores data after the first data processing in association with date-and-time data corresponding to date and time at which the data is stored each time the first period elapses, wherein the data stored in the TR data storing part (162) is retrievable.
