The invention discloses a driver board testing device, which comprises a digital signal processor (DSP) chip, and is characterized in that the DSP chip comprises an enhanced pulse width modulation (EPWM) module and an enhanced capture (ECAP) module; the EPWM module is connected with a tested driver board and used for generating and outputting test pulses to the tested driver board so as to enable the tested driver board to output corresponding pulse signals according to the test pulses; the ECAP module is connected with the tested driver board and used for acquiring the dead time of the tested driver board according to the pulse signals outputted by the tested driver board so as to test the tested driver board. The driver board testing device carries out testing on the driver board without through a manual means, and is fast, simple and convenient in test. In addition, the driver board testing device can avoid influences imposed on a test result by artificial factors, improves the test efficiency and the test accuracy, and meets high-standard driver board testing requirements.