The invention belongs to the related field of IGBT heat dissipation, and provides a magnetofluid pump device for IGBT heat dissipation and a test method. The magnetofluid pump device designed by the invention adopts liquid metal as a coolant, more heat can be absorbed than a common water cooling device, and heat can be better dissipated for an IGBT chip. Temperature and pressure changes in the inlet pipeline and the outlet pipeline of the magnetofluid pump can be monitored in real time through a temperature sensor and a pressure sensor, and the temperature change of the IGBT chip can be observed in real time through a thermal imager. The test method for the magnetofluid pump device for IGBT heat dissipation is simple and easy to implement, the positive electrode and the negative electrodein the magnetofluid pump are powered on under the action of the magnetic field to drive the magnetofluid to flow, and the water cooling equipment can dissipate heat of the magnetofluid in the magnetofluid pump. The test method provided by the invention can test the heat dissipation effects of the magnetofluids with different flow rates on the IGBT chip under different powers, and provides guarantee for the normal work of the IGBT chip.