An extracorporeal circulation management device comprising: a systolic-diastolic phase information generation unit configured to identify systolic phase information and the diastolic phase information in each heartbeat, wherein blood supply information for blood supply or blood supply stop information for stopping the blood supply is configured to be transmitted to a motor unit, based on the systolic phase information and the diastolic phase information, the extracorporeal circulation management device further comprising a flow rate information storage unit configured to store flow rate information items with information on a flow rate of blood of a target person, which is acquired from a flow rate measurement unit; a candidate information generation unit configured to identify systolic phase candidate information items, which may potentially correspond to systolic phase information on a systolic phase in which a heart of the target person contracts, and diastolic phase candidate information items, which may potentially correspond to diastolic phase information on a diastolic phase in which the heart expands, based on information on comparison between a plurality of the flow rate information items acquired in time series; wherein the systolic-diastolic phase information generation unit is configured to identify the systolic phase information and the diastolic phase information in each heartbeat based on information on appearance of a plurality of the systolic phase candidate information items and a plurality of the diastolic phase candidate information items acquired in time series; and characterized in that the systolic-diastolic phase information generation unit comprises a heartbeat noise deletion processing unit configured to eliminate noise information which indicates wrong systolic phase candidate information and wrong diastolic phase candidate information. a systolic-diastolic phase information generation unit configured to identify systolic phase information and the diastolic phase information in each heartbeat, wherein blood supply information for blood supply or blood supply stop information for stopping the blood supply is configured to be transmitted to a motor unit, based on the systolic phase information and the diastolic phase information, the extracorporeal circulation management device further comprising a flow rate information storage unit configured to store flow rate information items with information on a flow rate of blood of a target person, which is acquired from a flow rate measurement unit; a candidate information generation unit configured to identify systolic phase candidate information items, which may potentially correspond to systolic phase information on a systolic phase in which a heart of the target person contracts, and diastolic phase candidate information items, which may potentially correspond to diastolic phase information on a diastolic phase in which the heart expands, based on information on comparison between a plurality of the flow rate information items acquired in time series; wherein the systolic-diastolic phase information generation unit is configured to identify the systolic phase information and the diastolic phase information in each heartbeat based on information on appearance of a plurality of the systolic phase candidate information items and a plurality of the diastolic phase candidate information items acquired in time series; and characterized in that the systolic-diastolic phase information generation unit comprises a heartbeat noise deletion processing unit configured to eliminate noise information which indicates wrong systolic phase candidate information and wrong diastolic phase candidate information.