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The data acquisition system can convert analog signal to digital signal and input it into the computer. In practical applications, in view of different application scenarios, different sensors, and different project requirements, a customized data acquisition system is generally required. Thanks to the universal hardware acquisition device developed by NI (National Instruments), the user only needs to consider the design of the software part of the data acquisition project. This paper proposes a data acquisition and processing software design method based on the LabVIEW programming language. The method considers the versatility, focuses on software reusability, and improves project development efficiency.