Field Programmable Gate Array(FPGA) plays an increasingly important role in the fields of data acquisition, signal processing and measurement control, etc. NI has already expanded LabVIEW to the development of FPGA，which makes the development of FPGA much easier and more efficient. The data acquisition system based on CompactRIO and NI9205 module is developed by using simulation technology, which is able to analyze the amplitude and phase spectrum of the signal acquired. The proposed system bears practical significance and value, and can be further expanded to an automated software testing platform.