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The traditional realization of “MCU+AD component” has been difficult to meet the needs of high-speed parallel multi-channel test in data acquisition and processing. With the increase of spacecraft system, for the high-speed parallel testing need of spacecraft , a design of high-Speed multichannel spacecraft universal testing System Based On LabVIEW is presented. The hardware architecture of the system uses PXI chassis, acquisition board, command control board card and processing board card. The software of the test system based on LabVIEW achieves functions of high-speed parallel multi-channel acquisition control, data real-time display, data storage, data playback and command control. Result shows that his testing system can support the high-speed parallel acquisition control of 128 channels in the total sampling rate of 1KHz. After a long-time test, the test results show that this testing system works stably and reliably, and has good practical value.