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In order to detect missile and rocket electric igniter resistance safely and accurately, an electric igniter detection system which can be commonly used for different types of missiles and rockets is designed, The detection system has a detection current of less than 5mA and a detection error of less than 0.03 Ω at -40 ° C ~ + 55 ° C. Firstly, the characteristics of resistance detection of missile and rocket electric igniter are analyzed. Later, the overall design of the detection system is given. Then detailed hardware design is carried out, including channel switching circuit design, constant current circuit and data acquisition circuit design, control and data processing circuit design. Then the software design of the detection system is discussed. Lastly, it is proved by environmental tests and practical applications that the detection system has high safety, high accuracy and strong versatility.