Abstract: The paper aims to find a reasonable drought index for Liuzhou, which will help carry out the research on drought. Based on the daily precipitation data and actual drought information, using the equivalent dry period (EDP) and precipitation anomaly percentage index, the seasonal dry periods from 1961 to 2014 in Liuzhou were categorized and analyzed. Comparing the analysis results with the actual drought occurrence, the findings were as follows: (1) drought frequency and continuing seasonal drought frequency estimated by precipitation anomaly percentage were higher than those estimated by EDP; however, the two had 50% overlap; (2) EDP and precipitation were well correlated in most seasons in Liuzhou, the two indexes were in consistency with temporal and spatial variations, and provided certain rationale to analyze drought in Liuzhou; (3) dry years categorized by precipitation anomaly percentage fitted the actual occurrence of drought better than those categorized by EDP index, and had better correlation coefficients; therefore, using precipitation anomaly percentage to analyze drought in Liuzhou was more scientific and reasonable.