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In order to meet the test requirements and future development trend of a certain type of ground test, solve the problems of tedious collection process, poor real-time performance and poor expansibility in the past, a universal signal dynamic test system is proposed. Based on the proposed system framework, the software and hardware components, the software design and the functions of the system are described. The system is based on the 1394 communication protocol, and the corresponding drivers are written to complete the communication of multiple systems. The data is transmitted to the controller through the bus, and the actual value is calculated and displayed according to the linear or nonlinear processing algorithm. The application results show that the system is stable and reliable, and realizes the synchronous acquisition and storage of various sensor and temperature sensor data of multi-channel output standard signals. The sampling rate can be set freely, and the corresponding anti-interference measures are taken. The system has the characteristics of supporting sensor hot-plug, channel power supply isolation and the high reliability, which greatly improves the capability of the signal testing system. Finally, the system has achieved good application effect.