Abstract: A fault injection testing apparatus can include: a communication module communicating with an electronic control device; a test scenario management module creating a test scenario for performing a fault injection test on the electronic control device; a test run module running the fault injection test according to the test scenario and transmitting fault data to the electronic control device; a fault detection module determining whether the fault data is normally transmitted to the electronic control device from the test run module; and a recovery determination module determining whether the electronic control device recovers from a fault introduced to the electronic control device through the fault data transmitted from the test run module.