PROBLEM TO BE SOLVED: To provide an artificial heart control device, an artificial heart system and a method for controlling an artificial heart, capable of optimum load control for recovery of functions of a users own heart.SOLUTION: The artificial heart control device 60 for controlling a blood pump for assisting the flow of blood of the heart includes: a timing detection part 80 for detecting reference timing in a cardiac cycle of the heart, and a blood pump control part 62 for controlling the rotational frequency of the blood pump. The blood pump control part 62 controls the rotational frequency of the blood pump to be a rotational frequency corresponding to a given control pattern based on the reference timing detected by the timing detection part 80.