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In order to measure the superconductivity of lead-plated sample chamber in liquid helium cryogenic environment, a set of superconducting coating measuring device was established, including measuring platform, helium refrigerator system, vacuum system, heating system, temperature measuring system and network analyzer. The control system is based on EPICS. The device controller adopts SIMENS 1500 series PLC module. The development environment chooses PORTAl V14 SP1 and ladder diagram to compile the device control flow. The device driver and real-time database are configured on the IOC controller to control and interact with the data. The operation interface is generated by CSS for operators to set parameters and read data back. Archiver Application is used to store historical data, and CSS data browser is used to display trends and data queries. Through the experiment, the control system realizes the vacuum and low temperature environment, measures the superconductivity of the Lead-plating film, determines the proportion of the Lead-plating solution, which satisfies the practical application requirements of the project.