The blood purification device (100) of the invention is provided with a flow determining unit (170).It determines the execution flow of the pump;Pump control unit (172),According to the execution flow of the pump determined by the execution flow determination unit (170),Control the pump drive;Action temperature determining unit (180),According to the execution flow of the pump determined by the execution flow determination unit (170),The operating temperature of the heat source (130) is determined.And the heat source control unit (182),According to the operation temperature of the heat source (130) determined by the operation temperature determining unit (180),And controlling the heat conduction between the heat source (130) and the liquid.本發明之血液淨化裝置(100)具備:執行流量決定部(170),其決定泵之執行流量;泵控制部(172),其根據藉由執行流量決定部(170)所決定的泵之執行流量,而控制泵之驅動;動作溫度決定部(180),其根據藉由執行流量決定部(170)所決定的泵之執行流量,而決定熱源器(130)之動作溫度;及熱源器控制部(182),其根據藉由動作溫度決定部(180)所決定的熱源器(130)之動作溫度,而控制於熱源器(130)及液體間傳導之熱量。