A test software for the detector is designed based on embedded computer platform and virtual test environment according to the prescriptive hardware detection function for the airborne computer of the detector imported from Russia and the combat training demand for the software logic function calibration for the airborne computer. The general structure is described for the detector. The composition, running process and control state are introduced in detail. Some key technologies are used in the procedure of designing, such as reverse engineering, bilingual compatibility and software template comparison etc. The test software has been used in the airborne computer detector of an aircraft. The application results show that the characteristics of the software are convenient operation and steady performance. It can improve the efficiency of training and combat readiness.