Abstract: Based on the analysis of status of total emission control (TEC) for SO2 in China during the Ninth Five-Year Plan period and the theory of divisional air resources,the national target of SO2 TEC and its allocation for different regions during the Tenth Five-Year Plan Period were studied,and an initial scenario for SO2 TEC at national level and for the SO2 and Acid Rain Control Areas(the Two Control Areas) during the Tenth Five-Year Plan period proposed.According to the study,the authors recommend controlling the total emission level of SO2 within 18.2 million tons by 2005.