Abstract: This paper analyzes the data of pollutant emissions from burning mixtures of petroleum coke and oil shale at different ratios in a 1 MW CFB test burner. Results show that petroleum coke containing over 6% sulfur(mass fraction) can be used as fuel resource if mixed with oil shale at an appropriate ratio to reduce the mixture's sulfur level to less than 3%. With suitable Ca/S molar ratio and boiler bed temperature, the pollutant emissions from burning the mixed fuel can fully meet the national standards of environmental protection.