This study was conducted to find out the effect for removal of $NH_3$ gas, one of the offensive odor. The removal efficiencies of $NH_3$ gas through zeolie column increased with the decreased percolation velocity. The effect of zeolite colum in removing $NH_3$ gas was influenced by the water content of zeolite and the added amount of zeolite, but was not influenced by the setting method of zeolite. The $NH_3$ gas removing sequence of saturated cation species on zeolite was in order of Ca->Na->$NH_4$ ->Natural->K-zeolite. Consequently the effect of zeolite on $NH_3$ gas removal efficiency is consided by the water content, added amount and saturated cation of the zeolite.