As a key and important component in the environmental control system of civil aircraft, the performance of pressure sensor affects directly the management of aircraft air system.In order to ensure the quality of its installation and to improve the efficiency of aircraft development and batch production, an automatic pressure sensor test bench was designed for the performance test of pressure sensor. Firstly, this paper introduces the function,classification and performance parameters of the pressure sensor on the machine. Then, according to the test characteristics, the design scheme of the pressure sensor testing platform was elaborated from four aspects of test hardware architecture,equipment selection,test software and supporting equipment. Through the test software, we realized the automatic control of the pressure and temperature of the pressure sensor; after the test pressure and temperature stabilizing, the voltage signal of the pressure sensor was collected automatically; the test report was generated and judged after data processing. Finally, the application scope and significance of the pressure sensor test bench were presented.