According to the problem of inaccurate test results of electricity energy meters in radiation susceptibility test, based on .NET Framework platform, the automatic detection software of electric energy meter radiation susceptibility is designed and developed using C# language. Through the RS232 serial port, network port, GPIB and other control interfaces, the hardware devices such as the measured electric energy meter, standard device, and radiation interference device are cascaded to realize the radiation susceptibility test of the electric energy meter, and the residence time can be automatically matched when there is current, the mode of digital graphics processing is used to automatically monitor the electric energy meter pulse signal when there is no current,and the video is recorded as a checkback confirmation. The test results show that the developed automatic detection system meets the requirements of relevant standards and specifications of the electric energy meter, which can greatly improve the work efficiency and the accuracy of the data.