In order to detect whether the information field can be normally excited, activated, generated and work, this paper analyzes the design requirements of various indicators of an electrical parameter detection device, and the core control module, signal interface and display components of the electrical parameter detection device. They carried out structural design and used simulation tools for simulation verification. Finally, the detection test of the electrical parameter detection device proved that the device satisfies the requirements of various indicators for electrical parameter detection, accurately determines whether the information field works normally, and promotes the application value.