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To reduce the volume and weight of missile testing equipment, improve missile support and testing efficiency, a small missile testing equipment based on embedded technology is developed; Breaking away from the chassis architecture in terms of structure, adopting a board stacking method, and implementing data exchange and testing resource configuration between boards through serial communication to reduce device size; Based on the STM32 main control chip, the board adopts a master-slave dual core design, and is divided into master-slave peripheral configurations according to functional requirements to achieve multiple functions on one board; Compatible with Ethernet control and touch screen offline control, it can work independently without an industrial computer, further reducing equipment requirements; Adopting object-oriented software design philosophy, dividing and designing software functions according to functionality, hierarchy, and modularity; Through docking tests with a certain type of missile testing simulator, it was verified that its functions fully meet the requirements of missile testing resources. Compared with traditional chassis architecture testing equipment, the volume was compressed by nearly 70% and the total weight was reduced by more than 50%.