Abstract: According to the complexity of variation in a complex industrial process, the current measurement has dropped behind. To solve the problem, an object-oriented architecture of image processing system is proposed for complex industrial process, which combines the computer techniques with image process techniques. Taking account of its versatility and object-oriented characteristic, the architecture includes video monitoring module, integrated module of image processing algorithm and intelligent recognition module of working conditions, thus embodying what the software are pursuing structured system design and multiplexing software. For example, the architecture has been applied to develop an image processing system so as to recognize the burning zone in rotary kiln for alumina production as a typical complex industrial process, and the good results has been verified.