Abstract: By using the existing data on air pollution sources and air quality monitoring ,the situationof air pollution and its control in Lanzhou isanalyzed.lt is shown that coal stands 71 % of the total energy resources . The annual discharge of S02 and soot isrespec： tively 59. 6kt and 65. 4kt . Moreover,tail gas has become one of the main air pollution sources . According to the data analysis during the heating period ,the daily mean value of S02 concentration in the city exceeds the second grade of the Ambient Air Quality Standard of China ,and that of TSP concentration also stays high over the Standardthroughout the year. Therefore,centralized heating syste m , gas and briquette schemes ,and tail gas control aretaken as the major feasible measures in planning the urban air pollution control projects .At the same time ,planting trees and solar energy should also be taken into consideration for the air pollution control schemes .