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In order to meet the functional requirements of MX1601B-R data acquisition equipment for data acquisition in wind tunnel, a wind tunnel data acquisition system was designed based on MX1601B-R. This paper firstly analyzes the system from its structure and working principle. Secondly, the hardware and the design platform of the system are summarized. Then, the design idea of the system is given in detail, and the modular design of the system is carried out from the aspects of equipment scanning connection, module parameter setting, zero point display, data monitoring, data collection and data viewing and analysis. Finally, the system is used to collect and analyze the data of the temperature rack in a wind tunnel, and to verify the function of the system. The verification results show that the system can effectively display, monitor, collect, display and analyze wind tunnel test data. Meanwhile, the start time error of the system is better than 0.01s. Thus, it can be explained that the system has simple interface, complete functions and quick collection response, which can meet the data collection requirements of wind tunnel test.