Abstract: Effect of a constructed wetland bed of mineralized refuse treating livestock wastewater was studied, using the sequencing batch inflow method that kept the inflow at 1:20 = m (solid) : V (liquid) and 1.25 m³•m^-2•d^-1 in hydraulic loading, and had 4 kinds of plants (Cyperus alternifolius, Phragmites australis, Canna indica, Acorus calamus) growing. After 90 days of continuous operation, the bed removal rates were achieved to 41.3% - 52.5%, 55.2% - 72.1%, 44.2% - 76.7% and 40.1% ~ 68.0% of COD_Cr, SS, NH₄⁺-N and TP, respectively, from the wastewater. The effect of plants differed slightly within only 10 percentage point or so from CK (no plant), because it was obscured by the characteristics of the mineralized refuse filler per se. the mineralized refuse was very strong in nitrification capacity, thus leading to accumulation of as high as over 10 mg•L^-1 NO₃^--N, and a low TN removal rate, being only 41.6% - 45.9%. therefore, a 150-cm-high column was filled with mineralized refuse to create an anaerobic condition for denitrification. After 90 days of operation with hydraulic loading kept at 0.30  m³•m^-2•d^-1, the column obtained a NO₃^--N removal rate at the depth of 120 cm as high as 97% or beyond, when NO₃^--N concentration in the influent was about 20 and 40 mg•L^-1.