Abstract: In this paper, a novel rotating packed bed used in the ozone oxidative treatment of dye wastewater was investigated. Ozone oxidation experiments were conducted to examine the effects of various operation variables, including high gravity factors β, initial pH of dye wastewater and gas to liquid ratio on the decolorization efficiency. Experimental results indicated that the decolorization efficiency increased with increasing high gravity factors and ratio of gas to liquid ratio. However, the effect was not obvious at a high gravity factor higher than 100. The decolorization efficiency increased with increasing pH value initially, and then gently decreased. The optimal initial pH value was 10～11. Compared with conventional O3 contactors, a rotating packed bed could be used to increase the efficiency of the ozone oxidative treatment of dye wastewater, due to its high mass transfer characteristics.