All kinds of advanced aviation electronic system has been equipped in the modern advanced fighter, the traditional manual detection means locate the trouble in the circuitry of the prototype. The manipulation is complicated and time consuming. Therefore it not only doesn't content the requirement of the modern warfare, but also requires many manipulators. So it is attended to the modern detection and location means, this paper puts forward and summarizes the detection system's actualities and problems of the severing fighters, at last the development tendency is forecasted.