[Object] Providing an extracorporeal circulation management device and so forth by which the oxygen consumption or the like in a patient regarding blood supplied from an oxygenator or the like can be correctly determined. [Solution] An extracorporeal circulation management device 10 carries out storing 52 of plural pieces of first state information of blood supplied from an oxygenator unit 2 with time-course information and plural pieces of second state information of blood introduced into the oxygenator unit with time-course information, has in-body passing time information 42, and selects the first state information and the second state information as comparison targets from the plural pieces of first state information and the plural pieces of second state information based on the in-body passing time information when comparing any of the plural pieces of first state information and any of the plural pieces of second state information.
