Abstract: The project Promoting Cleaner Production in China (sub-project B-4) conducted 29 cleaner production (CP) audits in 27 enterprises and identified 690 CP technologies.This paper divides 690 CP technologies into 2 categories,i.e.non/low cost options and equipment renovation options according to their investment.A cost-benefit analysis indicates that non/low cost options,in average,reduce COD by 5.4t/a and generate economic benefits by 101600 Yuan RMB/a for 1,000 Yuan RMB investment,and their average pay-back period is 4.0 months;equipment renovation options,in average,reduce COD by 0.060 t/a and generate economic benefits by 910 Yuan RMB/a (in terms of Net Profit Value) for 1000 Yuan RMB investment,and their average pay-back period is 40.0 months.