The blood purification device (100) of the invention has a device body (110), which is easy to load and unload on the extracorporeal circulation circuit； a pump (120, 122, 124), which is used to deliver liquid to the extracorporeal circulation circuit； a heat source (130), which is used to heat the liquid flowing in the extracorporeal circulation circuit； an actual flow information generation unit (150), which measures the actual flow of liquid passing through the heat source (130) The main control unit (160) performs various controls.本發明之血液淨化裝置(100)具備：裝置本體(110)，其係於體外循環迴路上裝卸自如；泵(120、122、124)，其係用以向該體外循環迴路內輸送液體；熱源器(130)，其對流動於體外循環迴路內之液體進行加溫；實際流量資訊生成部(150)，其測定通過熱源器(130)之液體之實際流量，且生成該液體之實際流量之相關資訊；及主控制部(160)，其執行各種控制。
