Abstract: In order to provide a portable electromagnetic wave measurement system scheme based on VNA as a platform for teaching or Scientific research department, an electromagnetic wave imaging and measurement system based on wireless transparent transmission control is designed. Through the mobile device as the client and the ESP8266 module as the server, the wireless transparent transmission control of the measurement system is realized. The server is connected to the vector network analyzer and the motor drive control circuit for parameter setting and data acquisition, and processes the collected data through corresponding algorithms to realize electromagnetic wave imaging and measurement. The system uses wireless transparent transmission for data interaction to isolate the user's test environment from the precision instrument, which not only protects the instrument, but also greatly improves the use efficiency of the instrument. The actual measurement results show that the test system can accurately image the surface wave of the object to be measured by electromagnetic waves, and the test results are consistent with the simulation.