In order to reach the environmental protection standards of Beijing,according to the characteristics of large air volume and low concentration of exhaust gas in the spray booth,a reasonable treatment scheme was proposed for exhaust gas discharged by the clear coating booth,which was successfully used in the actual project and fully met the local emission standards.The paint shop KPR system installation handling the clear coating booth VOC gas.By elaborating KPR design of background,working principle,design scheme,as well as the installation and debugging,equipment processing effect and finish the technical details,that provides a technical reference for VOC gas treatment equipment in automobile industry.It also provides a successful case for the implementation of environmental protection work in enterprises.