To provide an electric power steering control device whose manufacturing cost can be suppressed and which can be miniaturized, and to provide the electric power steering control device which can surely detect at least either one of an ON-failure or an open failure of switching elements connected in an H bridge shape even without a current detector irrespective of the driving state of a motor.

A motor driving circuit includes: first and second arms connected in the H bridged shape; first and second switching elements arranged on the first arm; and first and second switching elements arranged on the second arm and performs a failure detection of a switching element, in which at least either one of the ON-failure or the open failure of the switching element is detected, by switching on only either one of the switching element connected in the H bridge shape.