The software and hardware technologies of existing mainstream embedded testing systems are studied in response to the requirements for miniaturization of military testing equipment.By analyzing the common resource requirements of the test object,a universal hardware platform based on the STM32F407 microprocessor is designed.By adopting the latest software tools and development methods of STM32Cube ecosystem,focusing on strengthening the standardization and portability design of software architecture,the peripheral driver and application program design based on FreeRTOS real-time operating system are realized,and the engineering application is carried out in a portable test equipment.The test results show that the system has high integration and good universality,and has good practical value.