The innovation in coating process is different from the research in laboratory.It means the lower costs,and at the seam time the uncertainty of quality,security and working habit.In this paper,several innovations practice and benefit comparison are discussed such as cancelling ion-free water in washing,integrated water supply in pre-treatment,sharing one burner between drying and thermosetting oven,using emissions of the burner directly into thermosetting oven,and no discarding solutions used for treating et al.At the same time,targeted solutions are put forward to the negative impacts.