The temperature measurement accuracy of heating furnace tube surface is directly related to the operating state and safety production of heating furnace tubes.Some factors will seriously influence temperature measurement when thermal infrared imager is used to measure the surface temperature of heating furnace tubes,such as flames,smoke,adjacent furnace tube and furnace wall radiation,etc.To accurately acquire real surface temperature of heating furnace tubes,taking heating furnace in a refinery as an example,interference factors of infrared temperature measurement for tube surface were firstly analyzed,and then a real-time temperature calibration model based on industrial data was presented.Combining with the model,a set of expert rules to determine furnace tubes states were given.Finally this software was applied to practical engineering.The research results show that this method can effectively achieve the temperature calibration of tube surface.