In order to highlight individuality of new models,the two-tone process was introduced in painting workshop in form of repair mode.Firstly,the problems of masking materials such as small bubbles,mark-line and tape residue during the project period were identified,the boundary line bleeding and saw-tooth chips were analyzed,and then the targeted solutions systematically were pointed out.Secondly,the compatibility between two-tone film and original film covering sealer was researched because the rain gutter of tail-gate needs to spray the second color,and the result showed that the crack risk of paint film would be removed when it was sprayed as exterior area.Finally,the professional repair methods for paint film destruction were offered,as well as some suggestions for repair risk point and spray pattern design.