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Pertaining to the structural complexity, high price, low degree of automation, and low test efficiency of pitot-static test equipment in present stage, a kind of pitot-static test system design method based on incremental PID control is put forward. The system completes the core control task through the STM32 microcontroller, makes accurate control of pressure in sealed container and pipe, completes the automatic measurement of pressure,and displays the relevant flight parameters. Experiments prove that the system has advantages of quick response, less overshoot and can meet the accuracy requirement of the pitot-static system test. The pitot-static system is with low cost, strong commonality, ease of use, short test period and applicable to a variety of models, and has a good application prospect.