Based on the intelligent temperature measurement requirements of LF refining furnace,a set of intelligent temperature measurement device was designed using high-temperature infrared imaging technology and Siemens PLC,and the software and hardware design and development of the device control system were carried out.A visual-based intelligent temperature measurement software system was developed using the MFC framework in the Visual Studio 2017 development environment and modular design method.The temperature measurement process in the refining process was optimized,and the remote control and image visualization of the system greatly improved work efficiency and reduced temperature measurement costs.The test results show that the system can meet the functional requirements of intelligent temperature measurement in LF refining furnace,with stable operation,good human-machine interaction effect,high visualization degree,and high practicality.It provides a reference for the automation and intelligence of temperature measurement in LF refining furnace in the steel and metallurgical industry.