In view of the fact that the new aircraft units were used,it was common to lack the fuel accessory inspection equipment,a set of combined test equipment for refueling and oil delivery shutoff valve was designed.The basic work of the oil delivery shutoff valve was introduced,the composition and principle of fuel test system and electric control system were described,the realization methods of the hardware and software were given.The practical application shows that the test equipment can meet the test requirements of this type of fuel accessories,fully meeting the design goals.