The yield and nitrogen use efficiency of maize under super dense planting conditions（93 000 plantsper hectare） were investigated, which using the dense maize variety xinxin1, reducing 15% dosage of nitrogen fertil-izer and using natural zeolite as nitrogen fertilizer synergist. The results showed that using natural zeolite as nitrogenfertilizer synergist could improve 17.6%~38.1% of maize yield and 13.91~19.15 percentage of nitrogen use effi-ciency in super dense planting conditions compared with conventional cultivation, due to the increase of hundred-grains weight, reduction of lodging percentage and blank-stem rate. The output and benefit of maize, and nitrogenuse efficiency were increased significantly by applying natural zeolite at 176 kg·hm^-2 under super dense plantingconditions in sandy silt of Mudanjiang.