Provided is a device for driving an artificial cardiopulmonary pump, the device being easy to handle, capable of use in the operating room, capable of implementation in a portable structure, and capable of easily handling even situations in which emergency blood circulation support is necessary. The device is provided with a portable module unit (21) that can be carried and a base unit (22), to which the module unit (21) is detachably connected. The module unit (21) comprises a motor (25) for driving an artificial cardiopulmonary pump (12), a control unit (27), a flow meter-connecting section (28), a display unit (29) for displaying the blood flow, a base-connecting section (30) that is electrically connected to the base unit (22), and a module-side battery (31). The base unit (22) comprises a switching power supply (42), sensor-connecting sections (43) that are connected to sensors (18, 19) for detecting information relating to the blood, and a module-connecting section (44) that is electrically connected to a module unit (21).